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Finding the Fourth Proportional to 6,273.98, 8,656.11 and 3,917.48

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Solution

The fourth proportional to 6,273.98, 8,656.11 and 3,917.48 is: 5,404.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,273.98 : 8,656.11 = 3,917.48 : x
  2. Step 2: Convert to fraction form
    6,273.98/8,656.11 = 3,917.48/x
  3. Step 3: Cross multiply
    6,273.98x = 8,656.11 × 3,917.48
  4. Step 4: Simplify right side
    6,273.98x = 33,910,137.80
  5. Step 5: Solve for x
    x = 33,910,137.80/6,273.98
  6. Step 6: Final answer
    x = 5,404.88

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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.