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Finding the Fourth Proportional to 15,647.53, 23,470.89 and 5,259.28

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Solution

The fourth proportional to 15,647.53, 23,470.89 and 5,259.28 is: 7,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,647.53 : 23,470.89 = 5,259.28 : x
  2. Step 2: Convert to fraction form
    15,647.53/23,470.89 = 5,259.28/x
  3. Step 3: Cross multiply
    15,647.53x = 23,470.89 × 5,259.28
  4. Step 4: Simplify right side
    15,647.53x = 123,439,982.36
  5. Step 5: Solve for x
    x = 123,439,982.36/15,647.53
  6. Step 6: Final answer
    x = 7,888.78

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