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Finding the Fourth Proportional to 16,291.34, 22,481.97 and 8,839.34

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Solution

The fourth proportional to 16,291.34, 22,481.97 and 8,839.34 is: 12,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,291.34 : 22,481.97 = 8,839.34 : x
  2. Step 2: Convert to fraction form
    16,291.34/22,481.97 = 8,839.34/x
  3. Step 3: Cross multiply
    16,291.34x = 22,481.97 × 8,839.34
  4. Step 4: Simplify right side
    16,291.34x = 198,725,776.70
  5. Step 5: Solve for x
    x = 198,725,776.70/16,291.34
  6. Step 6: Final answer
    x = 12,198.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.