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Finding the Fourth Proportional to 29,658.62, 40,928.90 and 16,229.88

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Solution

The fourth proportional to 29,658.62, 40,928.90 and 16,229.88 is: 22,397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,658.62 : 40,928.90 = 16,229.88 : x
  2. Step 2: Convert to fraction form
    29,658.62/40,928.90 = 16,229.88/x
  3. Step 3: Cross multiply
    29,658.62x = 40,928.90 × 16,229.88
  4. Step 4: Simplify right side
    29,658.62x = 664,271,104.99
  5. Step 5: Solve for x
    x = 664,271,104.99/29,658.62
  6. Step 6: Final answer
    x = 22,397.23

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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.