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Finding the Fourth Proportional to 67,811.20, 101,745.60 and 32,732.80

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Solution

The fourth proportional to 67,811.20, 101,745.60 and 32,732.80 is: 49,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,811.20 : 101,745.60 = 32,732.80 : x
  2. Step 2: Convert to fraction form
    67,811.20/101,745.60 = 32,732.80/x
  3. Step 3: Cross multiply
    67,811.20x = 101,745.60 × 32,732.80
  4. Step 4: Simplify right side
    67,811.20x = 3,330,418,375.68
  5. Step 5: Solve for x
    x = 3,330,418,375.68/67,811.20
  6. Step 6: Final answer
    x = 49,113.10

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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.