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Finding the Fourth Proportional to 40,413.87, 60,624.36 and 12,340.26

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Solution

The fourth proportional to 40,413.87, 60,624.36 and 12,340.26 is: 18,511.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,413.87 : 60,624.36 = 12,340.26 : x
  2. Step 2: Convert to fraction form
    40,413.87/60,624.36 = 12,340.26/x
  3. Step 3: Cross multiply
    40,413.87x = 60,624.36 × 12,340.26
  4. Step 4: Simplify right side
    40,413.87x = 748,120,364.73
  5. Step 5: Solve for x
    x = 748,120,364.73/40,413.87
  6. Step 6: Final answer
    x = 18,511.48

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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.