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Finding the Fourth Proportional to 67,241.46, 100,815.48 and 29,781.12

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Solution

The fourth proportional to 67,241.46, 100,815.48 and 29,781.12 is: 44,650.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,241.46 : 100,815.48 = 29,781.12 : x
  2. Step 2: Convert to fraction form
    67,241.46/100,815.48 = 29,781.12/x
  3. Step 3: Cross multiply
    67,241.46x = 100,815.48 × 29,781.12
  4. Step 4: Simplify right side
    67,241.46x = 3,002,397,907.74
  5. Step 5: Solve for x
    x = 3,002,397,907.74/67,241.46
  6. Step 6: Final answer
    x = 44,650.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.