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Finding the Fourth Proportional to 83,946.38, 115,850.28 and 47,650.39

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Solution

The fourth proportional to 83,946.38, 115,850.28 and 47,650.39 is: 65,759.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,946.38 : 115,850.28 = 47,650.39 : x
  2. Step 2: Convert to fraction form
    83,946.38/115,850.28 = 47,650.39/x
  3. Step 3: Cross multiply
    83,946.38x = 115,850.28 × 47,650.39
  4. Step 4: Simplify right side
    83,946.38x = 5,520,311,023.61
  5. Step 5: Solve for x
    x = 5,520,311,023.61/83,946.38
  6. Step 6: Final answer
    x = 65,759.97

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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.