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Finding the Fourth Proportional to 22,423.80, 33,640.13 and 6,629.12

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Solution

The fourth proportional to 22,423.80, 33,640.13 and 6,629.12 is: 9,944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,423.80 : 33,640.13 = 6,629.12 : x
  2. Step 2: Convert to fraction form
    22,423.80/33,640.13 = 6,629.12/x
  3. Step 3: Cross multiply
    22,423.80x = 33,640.13 × 6,629.12
  4. Step 4: Simplify right side
    22,423.80x = 223,004,306.96
  5. Step 5: Solve for x
    x = 223,004,306.96/22,423.80
  6. Step 6: Final answer
    x = 9,944.98

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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.