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Finding the Fourth Proportional to 63,540.62, 87,690.03 and 36,688.04

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Solution

The fourth proportional to 63,540.62, 87,690.03 and 36,688.04 is: 50,631.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,540.62 : 87,690.03 = 36,688.04 : x
  2. Step 2: Convert to fraction form
    63,540.62/87,690.03 = 36,688.04/x
  3. Step 3: Cross multiply
    63,540.62x = 87,690.03 × 36,688.04
  4. Step 4: Simplify right side
    63,540.62x = 3,217,175,328.24
  5. Step 5: Solve for x
    x = 3,217,175,328.24/63,540.62
  6. Step 6: Final answer
    x = 50,631.79

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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.