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Finding the Third Proportional to 3,278 and 3,614

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Solution

The third proportional to 3,278 and 3,614 is: 3,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278 : 3,614 = 3,614 : x
  2. Step 2: Convert to fraction form
    3,278/3,614 = 3,614/x
  3. Step 3: Cross multiply
    3,278x = 3,614 × 3,614
  4. Step 4: Simplify right side
    3,278x = 13,060,996
  5. Step 5: Solve for x
    x = 13,060,996/3,278
  6. Step 6: Final answer
    x = 3,984.44

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.