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Finding the Fourth Proportional to 6,474.77, 9,712.14 and 2,578.25

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Solution

The fourth proportional to 6,474.77, 9,712.14 and 2,578.25 is: 3,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.77 : 9,712.14 = 2,578.25 : x
  2. Step 2: Convert to fraction form
    6,474.77/9,712.14 = 2,578.25/x
  3. Step 3: Cross multiply
    6,474.77x = 9,712.14 × 2,578.25
  4. Step 4: Simplify right side
    6,474.77x = 25,040,324.96
  5. Step 5: Solve for x
    x = 25,040,324.96/6,474.77
  6. Step 6: Final answer
    x = 3,867.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.