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Finding the Fourth Proportional to 3,362.42, 5,042.10 and 1,413.56

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Solution

The fourth proportional to 3,362.42, 5,042.10 and 1,413.56 is: 2,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.42 : 5,042.10 = 1,413.56 : x
  2. Step 2: Convert to fraction form
    3,362.42/5,042.10 = 1,413.56/x
  3. Step 3: Cross multiply
    3,362.42x = 5,042.10 × 1,413.56
  4. Step 4: Simplify right side
    3,362.42x = 7,127,310.88
  5. Step 5: Solve for x
    x = 7,127,310.88/3,362.42
  6. Step 6: Final answer
    x = 2,119.70

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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.