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Finding the Fourth Proportional to 29,861.80, 44,781.90 and 15,065.80

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Solution

The fourth proportional to 29,861.80, 44,781.90 and 15,065.80 is: 22,593.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,861.80 : 44,781.90 = 15,065.80 : x
  2. Step 2: Convert to fraction form
    29,861.80/44,781.90 = 15,065.80/x
  3. Step 3: Cross multiply
    29,861.80x = 44,781.90 × 15,065.80
  4. Step 4: Simplify right side
    29,861.80x = 674,675,149.02
  5. Step 5: Solve for x
    x = 674,675,149.02/29,861.80
  6. Step 6: Final answer
    x = 22,593.25

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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.