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Finding the Fourth Proportional to 18,581.54, 27,876.57 and 8,053.34

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Solution

The fourth proportional to 18,581.54, 27,876.57 and 8,053.34 is: 12,081.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.54 : 27,876.57 = 8,053.34 : x
  2. Step 2: Convert to fraction form
    18,581.54/27,876.57 = 8,053.34/x
  3. Step 3: Cross multiply
    18,581.54x = 27,876.57 × 8,053.34
  4. Step 4: Simplify right side
    18,581.54x = 224,499,356.86
  5. Step 5: Solve for x
    x = 224,499,356.86/18,581.54
  6. Step 6: Final answer
    x = 12,081.85

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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.