Determine whether they are in proportion.

21,49,33,77

Give full explanation

# Determine whether they are in proportion.

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Answer:Yes they are in proportion

Step-by-step explanation:=21:49::33:77

[tex] \frac{21}{49} = \frac{33}{77} \\ \\ \frac{3}{7} = \frac{3}{7} \: \: so \: the \: fractions \: are \: equal \: now \: finding \: the \: mutipe \: of \: iterior \: and \: exterior[/tex]