bamboo pole is inserted into the river. The part in the water accounts for one third of its total length, the part in the mud is one third longer than the part in the mud, and the length above the water is 3 meters. How many meters is the total length of this bamboo pole?
一根竹竿插入河中，水中的占全长的三分之一，比泥中部分多三分之一，露出水面的长3米，这根竹竿全长多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + (1/3)</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(1/3) / (4/3)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">3 / (5/12)</gadget>
<output>36/5 = around 7.2</output>

<result>36/5 = around 7.2</result>