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Finding the Third Proportional to 3,426 and 5,349

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Solution

The third proportional to 3,426 and 5,349 is: 8,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426 : 5,349 = 5,349 : x
  2. Step 2: Convert to fraction form
    3,426/5,349 = 5,349/x
  3. Step 3: Cross multiply
    3,426x = 5,349 × 5,349
  4. Step 4: Simplify right side
    3,426x = 28,611,801
  5. Step 5: Solve for x
    x = 28,611,801/3,426
  6. Step 6: Final answer
    x = 8,351.37

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.