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Finding the Third Proportional to 6,381 and 9,324

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Solution

The third proportional to 6,381 and 9,324 is: 13,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,381 : 9,324 = 9,324 : x
  2. Step 2: Convert to fraction form
    6,381/9,324 = 9,324/x
  3. Step 3: Cross multiply
    6,381x = 9,324 × 9,324
  4. Step 4: Simplify right side
    6,381x = 86,936,976
  5. Step 5: Solve for x
    x = 86,936,976/6,381
  6. Step 6: Final answer
    x = 13,624.35

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.