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Finding the Third Proportional to 3,897.75 and 8,349

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Solution

The third proportional to 3,897.75 and 8,349 is: 17,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,897.75 : 8,349 = 8,349 : x
  2. Step 2: Convert to fraction form
    3,897.75/8,349 = 8,349/x
  3. Step 3: Cross multiply
    3,897.75x = 8,349 × 8,349
  4. Step 4: Simplify right side
    3,897.75x = 69,705,801
  5. Step 5: Solve for x
    x = 69,705,801/3,897.75
  6. Step 6: Final answer
    x = 17,883.60

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.