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Finding the Fourth Proportional to 6,716.87, 9,269.32 and 3,691.96

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Solution

The fourth proportional to 6,716.87, 9,269.32 and 3,691.96 is: 5,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,716.87 : 9,269.32 = 3,691.96 : x
  2. Step 2: Convert to fraction form
    6,716.87/9,269.32 = 3,691.96/x
  3. Step 3: Cross multiply
    6,716.87x = 9,269.32 × 3,691.96
  4. Step 4: Simplify right side
    6,716.87x = 34,221,958.67
  5. Step 5: Solve for x
    x = 34,221,958.67/6,716.87
  6. Step 6: Final answer
    x = 5,094.93

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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.