Answers

2015-03-16T10:45:19+05:30
FINDING THE 4TH PROPORTIONAL IS EASY.IF WE ARE GIVEN A RATIO SUCH THAT
A:B::C:D D IS THE 4TH PROPORTIONAL.
A*D=B*C
THEREFORE D(4TH PROPORTIONAL)=B*C
                                                             A
EG 2:7::34:X
⇒ X= 34 * 7 = 119
           2
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