Respuesta :

A proportion is an equality of two ratios. Both given information is showed below.

First relation

[tex]\frac{3\colon3}{6\colon3}=\frac{1}{2}[/tex]

Second relation

[tex]\frac{9\colon3}{18\colon3}=\frac{3\colon3}{6\colon3}=\frac{1}{2}[/tex]

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