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Finding the Fourth Proportional to 29,385.78, 40,552.24 and 15,956.92

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Solution

The fourth proportional to 29,385.78, 40,552.24 and 15,956.92 is: 22,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,385.78 : 40,552.24 = 15,956.92 : x
  2. Step 2: Convert to fraction form
    29,385.78/40,552.24 = 15,956.92/x
  3. Step 3: Cross multiply
    29,385.78x = 40,552.24 × 15,956.92
  4. Step 4: Simplify right side
    29,385.78x = 647,088,849.50
  5. Step 5: Solve for x
    x = 647,088,849.50/29,385.78
  6. Step 6: Final answer
    x = 22,020.48

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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.