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Finding the Fourth Proportional to 8,166.48, 12,239.97 and 5,687.88

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Solution

The fourth proportional to 8,166.48, 12,239.97 and 5,687.88 is: 8,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.48 : 12,239.97 = 5,687.88 : x
  2. Step 2: Convert to fraction form
    8,166.48/12,239.97 = 5,687.88/x
  3. Step 3: Cross multiply
    8,166.48x = 12,239.97 × 5,687.88
  4. Step 4: Simplify right side
    8,166.48x = 69,619,480.56
  5. Step 5: Solve for x
    x = 69,619,480.56/8,166.48
  6. Step 6: Final answer
    x = 8,525.03

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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.