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Finding the Fourth Proportional to 2,481.38, 3,722.06 and 942.38

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Solution

The fourth proportional to 2,481.38, 3,722.06 and 942.38 is: 1,413.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.38 : 3,722.06 = 942.38 : x
  2. Step 2: Convert to fraction form
    2,481.38/3,722.06 = 942.38/x
  3. Step 3: Cross multiply
    2,481.38x = 3,722.06 × 942.38
  4. Step 4: Simplify right side
    2,481.38x = 3,507,594.90
  5. Step 5: Solve for x
    x = 3,507,594.90/2,481.38
  6. Step 6: Final answer
    x = 1,413.57

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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.