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Finding the Fourth Proportional to 12,373.95, 18,561.84 and 3,609.09

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Solution

The fourth proportional to 12,373.95, 18,561.84 and 3,609.09 is: 5,413.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,373.95 : 18,561.84 = 3,609.09 : x
  2. Step 2: Convert to fraction form
    12,373.95/18,561.84 = 3,609.09/x
  3. Step 3: Cross multiply
    12,373.95x = 18,561.84 × 3,609.09
  4. Step 4: Simplify right side
    12,373.95x = 66,991,351.13
  5. Step 5: Solve for x
    x = 66,991,351.13/12,373.95
  6. Step 6: Final answer
    x = 5,413.90

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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.