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Finding the Fourth Proportional to 16,668.78, 24,974.37 and 8,853.90

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Solution

The fourth proportional to 16,668.78, 24,974.37 and 8,853.90 is: 13,265.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668.78 : 24,974.37 = 8,853.90 : x
  2. Step 2: Convert to fraction form
    16,668.78/24,974.37 = 8,853.90/x
  3. Step 3: Cross multiply
    16,668.78x = 24,974.37 × 8,853.90
  4. Step 4: Simplify right side
    16,668.78x = 221,120,574.54
  5. Step 5: Solve for x
    x = 221,120,574.54/16,668.78
  6. Step 6: Final answer
    x = 13,265.55

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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.