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Finding the Fourth Proportional to 18,368.52, 25,349.08 and 9,985.56

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Solution

The fourth proportional to 18,368.52, 25,349.08 and 9,985.56 is: 13,780.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.52 : 25,349.08 = 9,985.56 : x
  2. Step 2: Convert to fraction form
    18,368.52/25,349.08 = 9,985.56/x
  3. Step 3: Cross multiply
    18,368.52x = 25,349.08 × 9,985.56
  4. Step 4: Simplify right side
    18,368.52x = 253,124,759.28
  5. Step 5: Solve for x
    x = 253,124,759.28/18,368.52
  6. Step 6: Final answer
    x = 13,780.36

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