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Find the unknown number in the proportion. Reduce your answer to lowest terms. 3/n = 9/11/8

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(3)/(n)=(9)/((11)/(8))

we can re-write the right-hand side

That is;


(3)/(n)=9*(8)/(11)
(3)/(n)=(72)/(11)

cross-multiply


72* n=3*11

72 n = 33

Divide both-side of the equation by 72


(72n)/(72)=(33)/(72)
n=(33)/(72)
n=(11)/(24)

User Jeff Clarke
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