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Finding the Fourth Proportional to 68,469.88, 94,479.03 and 38,251.42

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Solution

The fourth proportional to 68,469.88, 94,479.03 and 38,251.42 is: 52,781.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,469.88 : 94,479.03 = 38,251.42 : x
  2. Step 2: Convert to fraction form
    68,469.88/94,479.03 = 38,251.42/x
  3. Step 3: Cross multiply
    68,469.88x = 94,479.03 × 38,251.42
  4. Step 4: Simplify right side
    68,469.88x = 3,613,957,057.72
  5. Step 5: Solve for x
    x = 3,613,957,057.72/68,469.88
  6. Step 6: Final answer
    x = 52,781.71

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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.