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Finding the Fourth Proportional to 55,991.72, 83,999.43 and 18,549.68

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Solution

The fourth proportional to 55,991.72, 83,999.43 and 18,549.68 is: 27,828.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,991.72 : 83,999.43 = 18,549.68 : x
  2. Step 2: Convert to fraction form
    55,991.72/83,999.43 = 18,549.68/x
  3. Step 3: Cross multiply
    55,991.72x = 83,999.43 × 18,549.68
  4. Step 4: Simplify right side
    55,991.72x = 1,558,162,126.69
  5. Step 5: Solve for x
    x = 1,558,162,126.69/55,991.72
  6. Step 6: Final answer
    x = 27,828.44

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