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Finding the Fourth Proportional to 45,139.60, 67,644.60 and 33,200.20

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Solution

The fourth proportional to 45,139.60, 67,644.60 and 33,200.20 is: 49,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,139.60 : 67,644.60 = 33,200.20 : x
  2. Step 2: Convert to fraction form
    45,139.60/67,644.60 = 33,200.20/x
  3. Step 3: Cross multiply
    45,139.60x = 67,644.60 × 33,200.20
  4. Step 4: Simplify right side
    45,139.60x = 2,245,814,248.92
  5. Step 5: Solve for x
    x = 2,245,814,248.92/45,139.60
  6. Step 6: Final answer
    x = 49,752.64

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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.