math
posted by Josh .
1/9  (k+3)/(72K) = 1/(9k)  (k1)/(8k)

1/9  (k+3)/(72K) = 1/(9k)  (k1)/(8k)
multiply each term by 72k
8k  (k+3) = 8  9(k1)
8k  k  3 = 8  9k + 9
16k = 20
k = 20/16 = 5/4 or 1.25
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