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Finding the Fourth Proportional to 5,608.38, 8,413.50 and 1,711.88

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Solution

The fourth proportional to 5,608.38, 8,413.50 and 1,711.88 is: 2,568.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.38 : 8,413.50 = 1,711.88 : x
  2. Step 2: Convert to fraction form
    5,608.38/8,413.50 = 1,711.88/x
  3. Step 3: Cross multiply
    5,608.38x = 8,413.50 × 1,711.88
  4. Step 4: Simplify right side
    5,608.38x = 14,402,860.31
  5. Step 5: Solve for x
    x = 14,402,860.31/5,608.38
  6. Step 6: Final answer
    x = 2,568.10

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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.