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Finding the Fourth Proportional to 75,479.80, 113,219.70 and 22,891.90

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Solution

The fourth proportional to 75,479.80, 113,219.70 and 22,891.90 is: 34,337.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,479.80 : 113,219.70 = 22,891.90 : x
  2. Step 2: Convert to fraction form
    75,479.80/113,219.70 = 22,891.90/x
  3. Step 3: Cross multiply
    75,479.80x = 113,219.70 × 22,891.90
  4. Step 4: Simplify right side
    75,479.80x = 2,591,814,050.43
  5. Step 5: Solve for x
    x = 2,591,814,050.43/75,479.80
  6. Step 6: Final answer
    x = 34,337.85

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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.