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Finding the Fourth Proportional to 29,871.43, 44,805.04 and 8,812.78

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Solution

The fourth proportional to 29,871.43, 44,805.04 and 8,812.78 is: 13,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,871.43 : 44,805.04 = 8,812.78 : x
  2. Step 2: Convert to fraction form
    29,871.43/44,805.04 = 8,812.78/x
  3. Step 3: Cross multiply
    29,871.43x = 44,805.04 × 8,812.78
  4. Step 4: Simplify right side
    29,871.43x = 394,856,960.41
  5. Step 5: Solve for x
    x = 394,856,960.41/29,871.43
  6. Step 6: Final answer
    x = 13,218.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.