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| ra·tio [ ráyshō, ráyshi ō ] (plural ra·tios) |
noun |
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| Definition: |
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1. proportional relationship: a proportional relationship between two different numbers or quantities
  The ratio of teachers to students at that school is 1 to 27
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2. mathematics one number divided by another: a quotient of two numbers or expressions arrived at by dividing one by the other
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3. U.S. finance relative value of gold and silver: the value of gold and silver relative to each other in a monetary system based on these two metals
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| [Mid-17th century. < Latin, "calculation" (see reason)] |
