Mammoth Memory

Ratio vs proportion

As already stated

Ratio

A ratio shows how two numbers compare

`x` to every `y`

   or            `x:y`

 

Proportion

A proportion compares two ratios with an equals sign.

`x` to every `y` `=` `P` to every `Q`
or    `x/y` `=` `P/Q`

 

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