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Finding the Fourth Proportional to 14,974.20, 22,485.60 and 8,413.20

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Solution

The fourth proportional to 14,974.20, 22,485.60 and 8,413.20 is: 12,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,974.20 : 22,485.60 = 8,413.20 : x
  2. Step 2: Convert to fraction form
    14,974.20/22,485.60 = 8,413.20/x
  3. Step 3: Cross multiply
    14,974.20x = 22,485.60 × 8,413.20
  4. Step 4: Simplify right side
    14,974.20x = 189,175,849.92
  5. Step 5: Solve for x
    x = 189,175,849.92/14,974.20
  6. Step 6: Final answer
    x = 12,633.45

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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.