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Finding the Fourth Proportional to 22,581.80, 33,879.54 and 8,546.13

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Solution

The fourth proportional to 22,581.80, 33,879.54 and 8,546.13 is: 12,821.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.80 : 33,879.54 = 8,546.13 : x
  2. Step 2: Convert to fraction form
    22,581.80/33,879.54 = 8,546.13/x
  3. Step 3: Cross multiply
    22,581.80x = 33,879.54 × 8,546.13
  4. Step 4: Simplify right side
    22,581.80x = 289,538,953.18
  5. Step 5: Solve for x
    x = 289,538,953.18/22,581.80
  6. Step 6: Final answer
    x = 12,821.79

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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.