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Finding the Fourth Proportional to 22,266.40, 33,399.60 and 8,413.60

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Solution

The fourth proportional to 22,266.40, 33,399.60 and 8,413.60 is: 12,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,266.40 : 33,399.60 = 8,413.60 : x
  2. Step 2: Convert to fraction form
    22,266.40/33,399.60 = 8,413.60/x
  3. Step 3: Cross multiply
    22,266.40x = 33,399.60 × 8,413.60
  4. Step 4: Simplify right side
    22,266.40x = 281,010,874.56
  5. Step 5: Solve for x
    x = 281,010,874.56/22,266.40
  6. Step 6: Final answer
    x = 12,620.40

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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.