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The ratios 13:18 and 104:144 are in proportion
The ratios 4:25 and 16:125 are in proportion
The ratios 18:6 and 36:18 are in proportion
The ratios 12:2 and 36:8 are in proportion
The ratios 5:17 and 40:136 are in proportion
The ratios 20:11 and 80:55 are in proportion
The ratios 6:3 and 42:21 are in proportion
The ratios 10:23 and 90:230 are in proportion
The ratios 10:25 and 90:225 are in proportion
The ratios 6:14 and 30:70 are in proportion
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