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Finding the Fourth Proportional to 18,450.52, 27,675.76 and 6,764.68

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Solution

The fourth proportional to 18,450.52, 27,675.76 and 6,764.68 is: 10,147.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.52 : 27,675.76 = 6,764.68 : x
  2. Step 2: Convert to fraction form
    18,450.52/27,675.76 = 6,764.68/x
  3. Step 3: Cross multiply
    18,450.52x = 27,675.76 × 6,764.68
  4. Step 4: Simplify right side
    18,450.52x = 187,217,660.16
  5. Step 5: Solve for x
    x = 187,217,660.16/18,450.52
  6. Step 6: Final answer
    x = 10,147.01

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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.