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Finding the Fourth Proportional to 16,617.69, 24,917.19 and 5,518.44

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Solution

The fourth proportional to 16,617.69, 24,917.19 and 5,518.44 is: 8,274.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,617.69 : 24,917.19 = 5,518.44 : x
  2. Step 2: Convert to fraction form
    16,617.69/24,917.19 = 5,518.44/x
  3. Step 3: Cross multiply
    16,617.69x = 24,917.19 × 5,518.44
  4. Step 4: Simplify right side
    16,617.69x = 137,504,017.98
  5. Step 5: Solve for x
    x = 137,504,017.98/16,617.69
  6. Step 6: Final answer
    x = 8,274.56

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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.