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Finding the Fourth Proportional to 22,992.80, 34,489.20 and 16,311.20

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Solution

The fourth proportional to 22,992.80, 34,489.20 and 16,311.20 is: 24,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,992.80 : 34,489.20 = 16,311.20 : x
  2. Step 2: Convert to fraction form
    22,992.80/34,489.20 = 16,311.20/x
  3. Step 3: Cross multiply
    22,992.80x = 34,489.20 × 16,311.20
  4. Step 4: Simplify right side
    22,992.80x = 562,560,239.04
  5. Step 5: Solve for x
    x = 562,560,239.04/22,992.80
  6. Step 6: Final answer
    x = 24,466.80

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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.