"common ratio" meaning in English

{
  "forms": [
    {
      "form": "common ratios",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
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      "expansion": "common ratio (plural common ratios)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The ratio of each term of a geometric progression to the term preceding it."
      ],
      "id": "en-common_ratio-en-noun-RngzGfR6",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "ratio",
          "ratio"
        ],
        [
          "term",
          "term"
        ],
        [
          "geometric progression",
          "geometric progression"
        ],
        [
          "preceding",
          "precede"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The ratio of each term of a geometric progression to the term preceding it."
      ],
      "related": [
        {
          "word": "common difference"
        }
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "gōngbǐ",
          "sense": "Translations",
          "word": "公比"
        }
      ]
    }
  ],
  "word": "common ratio"
}

{
  "forms": [
    {
      "form": "common ratios",
      "tags": [
        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "common difference"
    }
  ],
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        "English countable nouns",
        "English entries with incorrect language header",
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        "Pages with 1 entry",
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      ],
      "glosses": [
        "The ratio of each term of a geometric progression to the term preceding it."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "ratio",
          "ratio"
        ],
        [
          "term",
          "term"
        ],
        [
          "geometric progression",
          "geometric progression"
        ],
        [
          "preceding",
          "precede"
        ]
      ],
      "raw_glosses": [
        "(mathematics) The ratio of each term of a geometric progression to the term preceding it."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "gōngbǐ",
      "sense": "Translations",
      "word": "公比"
    }
  ],
  "word": "common ratio"
}