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Finding the Fourth Proportional to 29,851.90, 44,778.94 and 9,861.90

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Solution

The fourth proportional to 29,851.90, 44,778.94 and 9,861.90 is: 14,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,851.90 : 44,778.94 = 9,861.90 : x
  2. Step 2: Convert to fraction form
    29,851.90/44,778.94 = 9,861.90/x
  3. Step 3: Cross multiply
    29,851.90x = 44,778.94 × 9,861.90
  4. Step 4: Simplify right side
    29,851.90x = 441,605,428.39
  5. Step 5: Solve for x
    x = 441,605,428.39/29,851.90
  6. Step 6: Final answer
    x = 14,793.21

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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.