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Finding the Third Proportional to 2,669 and 3,927

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Solution

The third proportional to 2,669 and 3,927 is: 5,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669 : 3,927 = 3,927 : x
  2. Step 2: Convert to fraction form
    2,669/3,927 = 3,927/x
  3. Step 3: Cross multiply
    2,669x = 3,927 × 3,927
  4. Step 4: Simplify right side
    2,669x = 15,421,329
  5. Step 5: Solve for x
    x = 15,421,329/2,669
  6. Step 6: Final answer
    x = 5,777.94

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.