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Finding the Fourth Proportional to 63,398.23, 87,489.42 and 36,540.55

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Solution

The fourth proportional to 63,398.23, 87,489.42 and 36,540.55 is: 50,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,398.23 : 87,489.42 = 36,540.55 : x
  2. Step 2: Convert to fraction form
    63,398.23/87,489.42 = 36,540.55/x
  3. Step 3: Cross multiply
    63,398.23x = 87,489.42 × 36,540.55
  4. Step 4: Simplify right side
    63,398.23x = 3,196,911,498.32
  5. Step 5: Solve for x
    x = 3,196,911,498.32/63,398.23
  6. Step 6: Final answer
    x = 50,425.88

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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.