Find the unknown term of the proportion: x/1,9=66,5/13,3

Gaintentavyw4 2022-09-13 Answered
Find the unknown term of the proportion: x/1,9=66,5/13,3
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Answers (1)

Yareli Hendrix
Answered 2022-09-14 Author has 8 answers
proportion rule; the product of the extreme terms of the proportion is equal to the product of the middle terms of the proportion; a and d are extreme; b and c are averages; a/b=c/d; => a•d=b•c; we multiply according to the rule with a cross;
Find the unknown term of the proportion:
x/1.9=66.5/13.3
X•13.3=1.9•66.5
13.3x=126.35
X=126.35:13.3
X=9.5
Examination
Х/1.9=66.5/13.3
9.5/1.9=5
5=5
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