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Finding the Fourth Proportional to 54,245.92, 74,829.30 and 38,137.88

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Solution

The fourth proportional to 54,245.92, 74,829.30 and 38,137.88 is: 52,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,245.92 : 74,829.30 = 38,137.88 : x
  2. Step 2: Convert to fraction form
    54,245.92/74,829.30 = 38,137.88/x
  3. Step 3: Cross multiply
    54,245.92x = 74,829.30 × 38,137.88
  4. Step 4: Simplify right side
    54,245.92x = 2,853,830,863.88
  5. Step 5: Solve for x
    x = 2,853,830,863.88/54,245.92
  6. Step 6: Final answer
    x = 52,609.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.