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Finding the Third Proportional to 3,949 and 8,582

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Solution

The third proportional to 3,949 and 8,582 is: 18,650.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949 : 8,582 = 8,582 : x
  2. Step 2: Convert to fraction form
    3,949/8,582 = 8,582/x
  3. Step 3: Cross multiply
    3,949x = 8,582 × 8,582
  4. Step 4: Simplify right side
    3,949x = 73,650,724
  5. Step 5: Solve for x
    x = 73,650,724/3,949
  6. Step 6: Final answer
    x = 18,650.47

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.