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Finding the Third Proportional to 3,165 and 6,684

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Solution

The third proportional to 3,165 and 6,684 is: 14,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,165 : 6,684 = 6,684 : x
  2. Step 2: Convert to fraction form
    3,165/6,684 = 6,684/x
  3. Step 3: Cross multiply
    3,165x = 6,684 × 6,684
  4. Step 4: Simplify right side
    3,165x = 44,675,856
  5. Step 5: Solve for x
    x = 44,675,856/3,165
  6. Step 6: Final answer
    x = 14,115.59

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.