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Finding the Fourth Proportional to 15,974.40, 23,961.60 and 9,413.40

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Solution

The fourth proportional to 15,974.40, 23,961.60 and 9,413.40 is: 14,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,974.40 : 23,961.60 = 9,413.40 : x
  2. Step 2: Convert to fraction form
    15,974.40/23,961.60 = 9,413.40/x
  3. Step 3: Cross multiply
    15,974.40x = 23,961.60 × 9,413.40
  4. Step 4: Simplify right side
    15,974.40x = 225,560,125.44
  5. Step 5: Solve for x
    x = 225,560,125.44/15,974.40
  6. Step 6: Final answer
    x = 14,120.10

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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.