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Finding the Fourth Proportional to 29,658.60, 40,928.51 and 16,229.70

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Solution

The fourth proportional to 29,658.60, 40,928.51 and 16,229.70 is: 22,396.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,658.60 : 40,928.51 = 16,229.70 : x
  2. Step 2: Convert to fraction form
    29,658.60/40,928.51 = 16,229.70/x
  3. Step 3: Cross multiply
    29,658.60x = 40,928.51 × 16,229.70
  4. Step 4: Simplify right side
    29,658.60x = 664,257,357.60
  5. Step 5: Solve for x
    x = 664,257,357.60/29,658.60
  6. Step 6: Final answer
    x = 22,396.79

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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.