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The ratio of a to b is the same as the ratio of 1.4 to 7. If a＝14, what is the value of b?____
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解析：
因为a÷b=1.4÷7，当a=14时，经计算b=70。
因为a÷b=1.4÷7，当a=14时，经计算b=70。
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