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Finding the Fourth Proportional to 5,331.92, 7,993.04 and 1,867.28

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Solution

The fourth proportional to 5,331.92, 7,993.04 and 1,867.28 is: 2,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.92 : 7,993.04 = 1,867.28 : x
  2. Step 2: Convert to fraction form
    5,331.92/7,993.04 = 1,867.28/x
  3. Step 3: Cross multiply
    5,331.92x = 7,993.04 × 1,867.28
  4. Step 4: Simplify right side
    5,331.92x = 14,925,243.73
  5. Step 5: Solve for x
    x = 14,925,243.73/5,331.92
  6. Step 6: Final answer
    x = 2,799.22

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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.