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Finding the Third Proportional to 5,682 and 9,131

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Solution

The third proportional to 5,682 and 9,131 is: 14,673.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,682 : 9,131 = 9,131 : x
  2. Step 2: Convert to fraction form
    5,682/9,131 = 9,131/x
  3. Step 3: Cross multiply
    5,682x = 9,131 × 9,131
  4. Step 4: Simplify right side
    5,682x = 83,375,161
  5. Step 5: Solve for x
    x = 83,375,161/5,682
  6. Step 6: Final answer
    x = 14,673.56

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.