p/q + q/r + r/p = 3 and p²/q² + q²/r² + r²/p² = 3 then p/r + q/p + r/q
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Answer is 20:36:63
a:b=5:9
b:c=4:7
a=5*4=20
b=9*4=36
c=9*7=63
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