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Finding the Fourth Proportional to 5,481.88, 7,564.26 and 3,243.88

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Solution

The fourth proportional to 5,481.88, 7,564.26 and 3,243.88 is: 4,476.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.88 : 7,564.26 = 3,243.88 : x
  2. Step 2: Convert to fraction form
    5,481.88/7,564.26 = 3,243.88/x
  3. Step 3: Cross multiply
    5,481.88x = 7,564.26 × 3,243.88
  4. Step 4: Simplify right side
    5,481.88x = 24,537,551.73
  5. Step 5: Solve for x
    x = 24,537,551.73/5,481.88
  6. Step 6: Final answer
    x = 4,476.12

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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.