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Finding the Fourth Proportional to 8,531.52, 12,772.36 and 6,891.27

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Solution

The fourth proportional to 8,531.52, 12,772.36 and 6,891.27 is: 10,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.52 : 12,772.36 = 6,891.27 : x
  2. Step 2: Convert to fraction form
    8,531.52/12,772.36 = 6,891.27/x
  3. Step 3: Cross multiply
    8,531.52x = 12,772.36 × 6,891.27
  4. Step 4: Simplify right side
    8,531.52x = 88,017,781.30
  5. Step 5: Solve for x
    x = 88,017,781.30/8,531.52
  6. Step 6: Final answer
    x = 10,316.78

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