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Finding the Fourth Proportional to 29,275.98, 40,401.60 and 17,951.72

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Solution

The fourth proportional to 29,275.98, 40,401.60 and 17,951.72 is: 24,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,275.98 : 40,401.60 = 17,951.72 : x
  2. Step 2: Convert to fraction form
    29,275.98/40,401.60 = 17,951.72/x
  3. Step 3: Cross multiply
    29,275.98x = 40,401.60 × 17,951.72
  4. Step 4: Simplify right side
    29,275.98x = 725,278,008.74
  5. Step 5: Solve for x
    x = 725,278,008.74/29,275.98
  6. Step 6: Final answer
    x = 24,773.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.