After the decimal point of the number A is moved to the right, the number obtained is 28.8 larger than the original number. What is A?
数A的小数点向右移动一位后，得到的数比原来的数大28.8，A是多少．
<gadget id="calculator">28.8 / 9</gadget>
<output>3.2</output>

<result>3.2</result>