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Finding the Fourth Proportional to 63,489.82, 87,593.36 and 36,639.12

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Solution

The fourth proportional to 63,489.82, 87,593.36 and 36,639.12 is: 50,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,489.82 : 87,593.36 = 36,639.12 : x
  2. Step 2: Convert to fraction form
    63,489.82/87,593.36 = 36,639.12/x
  3. Step 3: Cross multiply
    63,489.82x = 87,593.36 × 36,639.12
  4. Step 4: Simplify right side
    63,489.82x = 3,209,343,628.24
  5. Step 5: Solve for x
    x = 3,209,343,628.24/63,489.82
  6. Step 6: Final answer
    x = 50,548.95

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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.