FIND THE FOURTH PROPORTION OF 7/3, 7/27, 0.81 plz tell quickly
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Let the fourth propotion be x
Then
7/3 :7/27 :: 81/100 : x
7/3 ×x = 7/27 ×81/100
7x/3 = 21/100
X = 21/100 ÷7/3
X = 3/100
Hence fourth propotion is 3/100
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