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Finding the Third Proportional to 2,656 and 6,384

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Solution

The third proportional to 2,656 and 6,384 is: 15,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656 : 6,384 = 6,384 : x
  2. Step 2: Convert to fraction form
    2,656/6,384 = 6,384/x
  3. Step 3: Cross multiply
    2,656x = 6,384 × 6,384
  4. Step 4: Simplify right side
    2,656x = 40,755,456
  5. Step 5: Solve for x
    x = 40,755,456/2,656
  6. Step 6: Final answer
    x = 15,344.67

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.