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Finding the Fourth Proportional to 7,257.62, 10,890.63 and 3,361.82

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Solution

The fourth proportional to 7,257.62, 10,890.63 and 3,361.82 is: 5,044.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.62 : 10,890.63 = 3,361.82 : x
  2. Step 2: Convert to fraction form
    7,257.62/10,890.63 = 3,361.82/x
  3. Step 3: Cross multiply
    7,257.62x = 10,890.63 × 3,361.82
  4. Step 4: Simplify right side
    7,257.62x = 36,612,337.75
  5. Step 5: Solve for x
    x = 36,612,337.75/7,257.62
  6. Step 6: Final answer
    x = 5,044.68

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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.