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Finding the Fourth Proportional to 6,694.48, 9,239.88 and 3,900.52

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Solution

The fourth proportional to 6,694.48, 9,239.88 and 3,900.52 is: 5,383.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,694.48 : 9,239.88 = 3,900.52 : x
  2. Step 2: Convert to fraction form
    6,694.48/9,239.88 = 3,900.52/x
  3. Step 3: Cross multiply
    6,694.48x = 9,239.88 × 3,900.52
  4. Step 4: Simplify right side
    6,694.48x = 36,040,336.74
  5. Step 5: Solve for x
    x = 36,040,336.74/6,694.48
  6. Step 6: Final answer
    x = 5,383.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.