On a map with a scale of 1:3500000, the distance between AB and AB is 15 cm. On another map with a scale of 1:5000000, how many centimeters should the distance between AB and AB be drawn?
在一幅比例尺是1：3500000的地图上量得AB两地相距15厘米，在另一幅比例尺是1：5000000的地图上AB两地的距离应画多少厘米？
<gadget id="calculator">1 / 3_500_000</gadget>
<output>1/3_500_000 = around 0</output>

<gadget id="calculator">15 / (1/3_500_000)</gadget>
<output>52_500_000</output>

<gadget id="calculator">1 / 5_000_000</gadget>
<output>1/5_000_000 = around 0</output>

<gadget id="calculator">52_500_000 * (1/5_000_000)</gadget>
<output>21/2 = around 10.5</output>

<result>21/2 = around 10.5</result>