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Finding the Fourth Proportional to 58,486.58, 87,660.31 and 26,869.85

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Solution

The fourth proportional to 58,486.58, 87,660.31 and 26,869.85 is: 40,272.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,486.58 : 87,660.31 = 26,869.85 : x
  2. Step 2: Convert to fraction form
    58,486.58/87,660.31 = 26,869.85/x
  3. Step 3: Cross multiply
    58,486.58x = 87,660.31 × 26,869.85
  4. Step 4: Simplify right side
    58,486.58x = 2,355,419,380.65
  5. Step 5: Solve for x
    x = 2,355,419,380.65/58,486.58
  6. Step 6: Final answer
    x = 40,272.82

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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.