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Finding the Fourth Proportional to 8,865,286.52, 12,233,568.11 and 5,143,830.21

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Solution

The fourth proportional to 8,865,286.52, 12,233,568.11 and 5,143,830.21 is: 7,098,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865,286.52 : 12,233,568.11 = 5,143,830.21 : x
  2. Step 2: Convert to fraction form
    8,865,286.52/12,233,568.11 = 5,143,830.21/x
  3. Step 3: Cross multiply
    8,865,286.52x = 12,233,568.11 × 5,143,830.21
  4. Step 4: Simplify right side
    8,865,286.52x = 62,927,397,194,591.45
  5. Step 5: Solve for x
    x = 62,927,397,194,591.45/8,865,286.52
  6. Step 6: Final answer
    x = 7,098,179.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.