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Finding the Fourth Proportional to 54,397.92, 75,069.92 and 30,523.20

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Solution

The fourth proportional to 54,397.92, 75,069.92 and 30,523.20 is: 42,122.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,397.92 : 75,069.92 = 30,523.20 : x
  2. Step 2: Convert to fraction form
    54,397.92/75,069.92 = 30,523.20/x
  3. Step 3: Cross multiply
    54,397.92x = 75,069.92 × 30,523.20
  4. Step 4: Simplify right side
    54,397.92x = 2,291,374,182.14
  5. Step 5: Solve for x
    x = 2,291,374,182.14/54,397.92
  6. Step 6: Final answer
    x = 42,122.46

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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.