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Finding the Fourth Proportional to 63,987.78, 88,305.06 and 35,692.86

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Solution

The fourth proportional to 63,987.78, 88,305.06 and 35,692.86 is: 49,257.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987.78 : 88,305.06 = 35,692.86 : x
  2. Step 2: Convert to fraction form
    63,987.78/88,305.06 = 35,692.86/x
  3. Step 3: Cross multiply
    63,987.78x = 88,305.06 × 35,692.86
  4. Step 4: Simplify right side
    63,987.78x = 3,151,860,143.87
  5. Step 5: Solve for x
    x = 3,151,860,143.87/63,987.78
  6. Step 6: Final answer
    x = 49,257.22

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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.