A map with a scale of 1:50000 is now redrawn with a scale of (1/20000), how many centimeters should be drawn on the new map for the distance of 4.8cm in the original map?
比例尺为1：50000的一幅地图，现在改用(1/20000)的比例尺重新绘制，原地图中4.8cm的距离，在新地图上应该画多少厘米？
<gadget id="calculator">1 / 50_000</gadget>
<output>1/50_000 = around 0.00002</output>

<gadget id="calculator">4.8 / (1/50_000)</gadget>
<output>240_000</output>

<gadget id="calculator">1 / 20_000</gadget>
<output>1/20_000 = around 0.00005</output>

<gadget id="calculator">240_000 * (1/20_000)</gadget>
<output>12</output>

<result>12</result>