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प्रश्न
Are 30, 40, 45, and 60 in proportion?
योग
उत्तर
Ratio of 30 to 40 = `30/40` = 3: 4.
Ratio of 45 to 60 = `45/60` = 3: 4.
Since, 30: 40 = 45: 60
Therefore, 30, 40, 45, and 60 are in proportion.
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