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Finding the Fourth Proportional to 29,073.71, 43,612.95 and 12,433.88

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Solution

The fourth proportional to 29,073.71, 43,612.95 and 12,433.88 is: 18,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,073.71 : 43,612.95 = 12,433.88 : x
  2. Step 2: Convert to fraction form
    29,073.71/43,612.95 = 12,433.88/x
  3. Step 3: Cross multiply
    29,073.71x = 43,612.95 × 12,433.88
  4. Step 4: Simplify right side
    29,073.71x = 542,278,186.75
  5. Step 5: Solve for x
    x = 542,278,186.75/29,073.71
  6. Step 6: Final answer
    x = 18,651.84

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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.