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Finding the Fourth Proportional to 49,542.80, 74,314.20 and 29,811.20

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Solution

The fourth proportional to 49,542.80, 74,314.20 and 29,811.20 is: 44,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,542.80 : 74,314.20 = 29,811.20 : x
  2. Step 2: Convert to fraction form
    49,542.80/74,314.20 = 29,811.20/x
  3. Step 3: Cross multiply
    49,542.80x = 74,314.20 × 29,811.20
  4. Step 4: Simplify right side
    49,542.80x = 2,215,395,479.04
  5. Step 5: Solve for x
    x = 2,215,395,479.04/49,542.80
  6. Step 6: Final answer
    x = 44,716.80

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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.