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Finding the Fourth Proportional to 54,449.92, 82,078.89 and 49,720.24

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Solution

The fourth proportional to 54,449.92, 82,078.89 and 49,720.24 is: 74,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,449.92 : 82,078.89 = 49,720.24 : x
  2. Step 2: Convert to fraction form
    54,449.92/82,078.89 = 49,720.24/x
  3. Step 3: Cross multiply
    54,449.92x = 82,078.89 × 49,720.24
  4. Step 4: Simplify right side
    54,449.92x = 4,080,982,109.73
  5. Step 5: Solve for x
    x = 4,080,982,109.73/54,449.92
  6. Step 6: Final answer
    x = 74,949.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.