| 2:8=6:x 0.6:36%=5:x3:(x+1)=9:4. |
| (1)2:8=6:x, 2×x=8×6, 2x=48, 2x÷2=48÷2, x=24; (2)0.6:36%=5:x, 0.6×x=0.36×5, 0.6x=1.8, 0.6x÷0.6=1.8÷0.6, x=3; (3)3:(x+1)=9:4, (x+1)×9=3×4, 9x+9=12 9x+9-9=12-9, 9x=3, 9x÷9=3÷9, x=
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(2)
=
(3)x:6=0.7:0.28(4)20:3=50:x
