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Finding the Fourth Proportional to 63,489.30, 87,596.28 and 36,631.32

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Solution

The fourth proportional to 63,489.30, 87,596.28 and 36,631.32 is: 50,540.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,489.30 : 87,596.28 = 36,631.32 : x
  2. Step 2: Convert to fraction form
    63,489.30/87,596.28 = 36,631.32/x
  3. Step 3: Cross multiply
    63,489.30x = 87,596.28 × 36,631.32
  4. Step 4: Simplify right side
    63,489.30x = 3,208,767,363.49
  5. Step 5: Solve for x
    x = 3,208,767,363.49/63,489.30
  6. Step 6: Final answer
    x = 50,540.29

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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.