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Finding the Fourth Proportional to 16,622.40, 24,933.78 and 9,613.20

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Solution

The fourth proportional to 16,622.40, 24,933.78 and 9,613.20 is: 14,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,622.40 : 24,933.78 = 9,613.20 : x
  2. Step 2: Convert to fraction form
    16,622.40/24,933.78 = 9,613.20/x
  3. Step 3: Cross multiply
    16,622.40x = 24,933.78 × 9,613.20
  4. Step 4: Simplify right side
    16,622.40x = 239,693,413.90
  5. Step 5: Solve for x
    x = 239,693,413.90/16,622.40
  6. Step 6: Final answer
    x = 14,419.90

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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.