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Finding the Fourth Proportional to 5,609.40, 8,413.92 and 1,713.84

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Solution

The fourth proportional to 5,609.40, 8,413.92 and 1,713.84 is: 2,570.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,609.40 : 8,413.92 = 1,713.84 : x
  2. Step 2: Convert to fraction form
    5,609.40/8,413.92 = 1,713.84/x
  3. Step 3: Cross multiply
    5,609.40x = 8,413.92 × 1,713.84
  4. Step 4: Simplify right side
    5,609.40x = 14,420,112.65
  5. Step 5: Solve for x
    x = 14,420,112.65/5,609.40
  6. Step 6: Final answer
    x = 2,570.71

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1.5x scale

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.