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Finding the Fourth Proportional to 63,985.95, 88,300.55 and 35,691.64

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Solution

The fourth proportional to 63,985.95, 88,300.55 and 35,691.64 is: 49,254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,985.95 : 88,300.55 = 35,691.64 : x
  2. Step 2: Convert to fraction form
    63,985.95/88,300.55 = 35,691.64/x
  3. Step 3: Cross multiply
    63,985.95x = 88,300.55 × 35,691.64
  4. Step 4: Simplify right side
    63,985.95x = 3,151,591,310.88
  5. Step 5: Solve for x
    x = 3,151,591,310.88/63,985.95
  6. Step 6: Final answer
    x = 49,254.43

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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.