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Finding the Fourth Proportional to 16,609.94, 24,919.48 and 8,279.90

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Solution

The fourth proportional to 16,609.94, 24,919.48 and 8,279.90 is: 12,422.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,609.94 : 24,919.48 = 8,279.90 : x
  2. Step 2: Convert to fraction form
    16,609.94/24,919.48 = 8,279.90/x
  3. Step 3: Cross multiply
    16,609.94x = 24,919.48 × 8,279.90
  4. Step 4: Simplify right side
    16,609.94x = 206,330,802.45
  5. Step 5: Solve for x
    x = 206,330,802.45/16,609.94
  6. Step 6: Final answer
    x = 12,422.13

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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.