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Ratio and Proportion

Ratio and proportion between two quantities

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Ratio

The ratio between two quantities is the quotient obtained by dividing the first quantity by the second.

Example - the Ratio

The ratio between 3 and 6 can be expressed as

1 / 2 = 0.5

Ratio can also be indicated by the sign ":" - like 1 : 2.

Reciprocal or Inverse Ratio

The reciprocal or inverse ratio is the opposite of the original ratio.

Example the Inverse Ratio

The inverse ratio between 6 and 3 can be expressed as

2 : 1 = 2

Proportion

Proportion is the equality of ratios.

Example - Proportion

    1 : 2 = 2 : 4

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Related Topics

  • Basics - Basic Information as SI-system, Unit converters, Physical constants...

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