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Finding the Fourth Proportional to 12,091.92, 16,686.40 and 6,787.04

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Solution

The fourth proportional to 12,091.92, 16,686.40 and 6,787.04 is: 9,365.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.92 : 16,686.40 = 6,787.04 : x
  2. Step 2: Convert to fraction form
    12,091.92/16,686.40 = 6,787.04/x
  3. Step 3: Cross multiply
    12,091.92x = 16,686.40 × 6,787.04
  4. Step 4: Simplify right side
    12,091.92x = 113,251,264.26
  5. Step 5: Solve for x
    x = 113,251,264.26/12,091.92
  6. Step 6: Final answer
    x = 9,365.86

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