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Finding the Fourth Proportional to 7,261.36, 10,891.02 and 2,331.43

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Solution

The fourth proportional to 7,261.36, 10,891.02 and 2,331.43 is: 3,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,261.36 : 10,891.02 = 2,331.43 : x
  2. Step 2: Convert to fraction form
    7,261.36/10,891.02 = 2,331.43/x
  3. Step 3: Cross multiply
    7,261.36x = 10,891.02 × 2,331.43
  4. Step 4: Simplify right side
    7,261.36x = 25,391,650.76
  5. Step 5: Solve for x
    x = 25,391,650.76/7,261.36
  6. Step 6: Final answer
    x = 3,496.82

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