A rectangular playground with a length of 180 meters and a width of 108 meters is drawn on the drawing according to a certain proportion. The length is 9 cm, and how many centimeters should be drawn in width?
一个长方形的操场，长180米，宽108米，按一定的比例画在图纸上，长画9厘米，宽应画多少厘米？
<gadget id="calculator">180 * 100</gadget>
<output>18_000</output>

<gadget id="calculator">9 / 18_000</gadget>
<output>1/2_000 = around 0.0005</output>

<gadget id="calculator">108 * 100 * (1/2_000)</gadget>
<output>27/5 = around 5.4</output>

<result>27/5 = around 5.4</result>