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Finding the Third Proportional to 1,695 and 3,882

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Solution

The third proportional to 1,695 and 3,882 is: 8,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695 : 3,882 = 3,882 : x
  2. Step 2: Convert to fraction form
    1,695/3,882 = 3,882/x
  3. Step 3: Cross multiply
    1,695x = 3,882 × 3,882
  4. Step 4: Simplify right side
    1,695x = 15,069,924
  5. Step 5: Solve for x
    x = 15,069,924/1,695
  6. Step 6: Final answer
    x = 8,890.81

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.