On the plan with a scale of 1:2000, the length of a bridge is measured to be 7.27 cm. What is the actual length of the bridge in meters? (Solution with proportional knowledge)
在比例尺是1：2000的平面图上，量得一座大桥的长度是7.27厘米．这座大桥的实际长度是多少米？(用比例知识解)
<gadget id="calculator">7.27 * 2_000</gadget>
<output>14_540</output>

<gadget id="calculator">14_540 / 100</gadget>
<output>727/5 = around 145.4</output>

<result>727/5 = around 145.4</result>