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Finding the Fourth Proportional to 3,331.89, 4,992.17 and 1,867.41

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Solution

The fourth proportional to 3,331.89, 4,992.17 and 1,867.41 is: 2,797.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,331.89 : 4,992.17 = 1,867.41 : x
  2. Step 2: Convert to fraction form
    3,331.89/4,992.17 = 1,867.41/x
  3. Step 3: Cross multiply
    3,331.89x = 4,992.17 × 1,867.41
  4. Step 4: Simplify right side
    3,331.89x = 9,322,418.84
  5. Step 5: Solve for x
    x = 9,322,418.84/3,331.89
  6. Step 6: Final answer
    x = 2,797.94

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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.