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Finding the Fourth Proportional to 29,221.17, 43,839.11 and 8,161.18

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Solution

The fourth proportional to 29,221.17, 43,839.11 and 8,161.18 is: 12,243.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,221.17 : 43,839.11 = 8,161.18 : x
  2. Step 2: Convert to fraction form
    29,221.17/43,839.11 = 8,161.18/x
  3. Step 3: Cross multiply
    29,221.17x = 43,839.11 × 8,161.18
  4. Step 4: Simplify right side
    29,221.17x = 357,778,867.75
  5. Step 5: Solve for x
    x = 357,778,867.75/29,221.17
  6. Step 6: Final answer
    x = 12,243.82

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1.5x scale

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.