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Finding the Fourth Proportional to 63,636.37, 87,862.13 and 39,773.77

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Solution

The fourth proportional to 63,636.37, 87,862.13 and 39,773.77 is: 54,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,636.37 : 87,862.13 = 39,773.77 : x
  2. Step 2: Convert to fraction form
    63,636.37/87,862.13 = 39,773.77/x
  3. Step 3: Cross multiply
    63,636.37x = 87,862.13 × 39,773.77
  4. Step 4: Simplify right side
    63,636.37x = 3,494,608,150.33
  5. Step 5: Solve for x
    x = 3,494,608,150.33/63,636.37
  6. Step 6: Final answer
    x = 54,915.27

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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.