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Finding the Fourth Proportional to 29,410.14, 40,585.86 and 15,981.14

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Solution

The fourth proportional to 29,410.14, 40,585.86 and 15,981.14 is: 22,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,410.14 : 40,585.86 = 15,981.14 : x
  2. Step 2: Convert to fraction form
    29,410.14/40,585.86 = 15,981.14/x
  3. Step 3: Cross multiply
    29,410.14x = 40,585.86 × 15,981.14
  4. Step 4: Simplify right side
    29,410.14x = 648,608,310.68
  5. Step 5: Solve for x
    x = 648,608,310.68/29,410.14
  6. Step 6: Final answer
    x = 22,053.90

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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.