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Finding the Fourth Proportional to 29,611.92, 40,863.22 and 17,520.24

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Solution

The fourth proportional to 29,611.92, 40,863.22 and 17,520.24 is: 24,177.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,611.92 : 40,863.22 = 17,520.24 : x
  2. Step 2: Convert to fraction form
    29,611.92/40,863.22 = 17,520.24/x
  3. Step 3: Cross multiply
    29,611.92x = 40,863.22 × 17,520.24
  4. Step 4: Simplify right side
    29,611.92x = 715,933,421.57
  5. Step 5: Solve for x
    x = 715,933,421.57/29,611.92
  6. Step 6: Final answer
    x = 24,177.20

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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.