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Finding the Fourth Proportional to 54,558, 81,856.20 and 26,875.44

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Solution

The fourth proportional to 54,558, 81,856.20 and 26,875.44 is: 40,322.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,558 : 81,856.20 = 26,875.44 : x
  2. Step 2: Convert to fraction form
    54,558/81,856.20 = 26,875.44/x
  3. Step 3: Cross multiply
    54,558x = 81,856.20 × 26,875.44
  4. Step 4: Simplify right side
    54,558x = 2,199,921,391.73
  5. Step 5: Solve for x
    x = 2,199,921,391.73/54,558
  6. Step 6: Final answer
    x = 40,322.62

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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.