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Finding the Fourth Proportional to 29,395.92, 40,565.40 and 15,966.88

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Solution

The fourth proportional to 29,395.92, 40,565.40 and 15,966.88 is: 22,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,395.92 : 40,565.40 = 15,966.88 : x
  2. Step 2: Convert to fraction form
    29,395.92/40,565.40 = 15,966.88/x
  3. Step 3: Cross multiply
    29,395.92x = 40,565.40 × 15,966.88
  4. Step 4: Simplify right side
    29,395.92x = 647,702,873.95
  5. Step 5: Solve for x
    x = 647,702,873.95/29,395.92
  6. Step 6: Final answer
    x = 22,033.77

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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.