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Finding the Fourth Proportional to 33,609.20, 50,413.80 and 13,901.90

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Solution

The fourth proportional to 33,609.20, 50,413.80 and 13,901.90 is: 20,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,609.20 : 50,413.80 = 13,901.90 : x
  2. Step 2: Convert to fraction form
    33,609.20/50,413.80 = 13,901.90/x
  3. Step 3: Cross multiply
    33,609.20x = 50,413.80 × 13,901.90
  4. Step 4: Simplify right side
    33,609.20x = 700,847,606.22
  5. Step 5: Solve for x
    x = 700,847,606.22/33,609.20
  6. Step 6: Final answer
    x = 20,852.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.