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Finding the Fourth Proportional to 3,614.61, 5,413.24 and 1,854.98

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Solution

The fourth proportional to 3,614.61, 5,413.24 and 1,854.98 is: 2,778.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.61 : 5,413.24 = 1,854.98 : x
  2. Step 2: Convert to fraction form
    3,614.61/5,413.24 = 1,854.98/x
  3. Step 3: Cross multiply
    3,614.61x = 5,413.24 × 1,854.98
  4. Step 4: Simplify right side
    3,614.61x = 10,041,451.94
  5. Step 5: Solve for x
    x = 10,041,451.94/3,614.61
  6. Step 6: Final answer
    x = 2,778.02

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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.