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Finding the Fourth Proportional to 22,461.20, 33,691.80 and 6,876.80

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Solution

The fourth proportional to 22,461.20, 33,691.80 and 6,876.80 is: 10,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,461.20 : 33,691.80 = 6,876.80 : x
  2. Step 2: Convert to fraction form
    22,461.20/33,691.80 = 6,876.80/x
  3. Step 3: Cross multiply
    22,461.20x = 33,691.80 × 6,876.80
  4. Step 4: Simplify right side
    22,461.20x = 231,691,770.24
  5. Step 5: Solve for x
    x = 231,691,770.24/22,461.20
  6. Step 6: Final answer
    x = 10,315.20

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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.