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Finding the Fourth Proportional to 63,025.72, 86,978.10 and 36,169.36

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Solution

The fourth proportional to 63,025.72, 86,978.10 and 36,169.36 is: 49,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,025.72 : 86,978.10 = 36,169.36 : x
  2. Step 2: Convert to fraction form
    63,025.72/86,978.10 = 36,169.36/x
  3. Step 3: Cross multiply
    63,025.72x = 86,978.10 × 36,169.36
  4. Step 4: Simplify right side
    63,025.72x = 3,145,942,211.02
  5. Step 5: Solve for x
    x = 3,145,942,211.02/63,025.72
  6. Step 6: Final answer
    x = 49,915.21

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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.