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Finding the Fourth Proportional to 16,616.82, 24,920.73 and 8,290.65

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Solution

The fourth proportional to 16,616.82, 24,920.73 and 8,290.65 is: 12,433.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,616.82 : 24,920.73 = 8,290.65 : x
  2. Step 2: Convert to fraction form
    16,616.82/24,920.73 = 8,290.65/x
  3. Step 3: Cross multiply
    16,616.82x = 24,920.73 × 8,290.65
  4. Step 4: Simplify right side
    16,616.82x = 206,609,050.17
  5. Step 5: Solve for x
    x = 206,609,050.17/16,616.82
  6. Step 6: Final answer
    x = 12,433.73

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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.