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Finding the Fourth Proportional to 8,474.15, 11,693.10 and 4,697.31

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Solution

The fourth proportional to 8,474.15, 11,693.10 and 4,697.31 is: 6,481.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.15 : 11,693.10 = 4,697.31 : x
  2. Step 2: Convert to fraction form
    8,474.15/11,693.10 = 4,697.31/x
  3. Step 3: Cross multiply
    8,474.15x = 11,693.10 × 4,697.31
  4. Step 4: Simplify right side
    8,474.15x = 54,926,167.08
  5. Step 5: Solve for x
    x = 54,926,167.08/8,474.15
  6. Step 6: Final answer
    x = 6,481.61

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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.