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Finding the Fourth Proportional to 45,871.38, 68,806.71 and 12,591.32

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Solution

The fourth proportional to 45,871.38, 68,806.71 and 12,591.32 is: 18,886.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,871.38 : 68,806.71 = 12,591.32 : x
  2. Step 2: Convert to fraction form
    45,871.38/68,806.71 = 12,591.32/x
  3. Step 3: Cross multiply
    45,871.38x = 68,806.71 × 12,591.32
  4. Step 4: Simplify right side
    45,871.38x = 866,366,959.72
  5. Step 5: Solve for x
    x = 866,366,959.72/45,871.38
  6. Step 6: Final answer
    x = 18,886.87

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