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Finding the Fourth Proportional to 83,951.60, 125,830.20 and 33,998.90

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Solution

The fourth proportional to 83,951.60, 125,830.20 and 33,998.90 is: 50,958.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,951.60 : 125,830.20 = 33,998.90 : x
  2. Step 2: Convert to fraction form
    83,951.60/125,830.20 = 33,998.90/x
  3. Step 3: Cross multiply
    83,951.60x = 125,830.20 × 33,998.90
  4. Step 4: Simplify right side
    83,951.60x = 4,278,088,386.78
  5. Step 5: Solve for x
    x = 4,278,088,386.78/83,951.60
  6. Step 6: Final answer
    x = 50,958.99

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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.