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Finding the Fourth Proportional to 28,591.88, 39,456.80 and 16,016.63

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Solution

The fourth proportional to 28,591.88, 39,456.80 and 16,016.63 is: 22,102.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.88 : 39,456.80 = 16,016.63 : x
  2. Step 2: Convert to fraction form
    28,591.88/39,456.80 = 16,016.63/x
  3. Step 3: Cross multiply
    28,591.88x = 39,456.80 × 16,016.63
  4. Step 4: Simplify right side
    28,591.88x = 631,965,105.27
  5. Step 5: Solve for x
    x = 631,965,105.27/28,591.88
  6. Step 6: Final answer
    x = 22,102.96

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