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4 : 3
selisih = 18 cm
jumlahnya, maka
(4 + 3 ) x 18/(4-3)
7 x 18/1
7 x 18
126 cm
c=18+d....1)
c/d=4/3
c=4/3d.....2)
disubstitusikan: 4/3d=18+d
4/3d-d=18
1/3d=18
d=54
c-d=18
c=18+d=18+54=72
jumlah= 126