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Finding the Third Proportional to 8,229 and 12,894

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Solution

The third proportional to 8,229 and 12,894 is: 20,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229 : 12,894 = 12,894 : x
  2. Step 2: Convert to fraction form
    8,229/12,894 = 12,894/x
  3. Step 3: Cross multiply
    8,229x = 12,894 × 12,894
  4. Step 4: Simplify right side
    8,229x = 166,255,236
  5. Step 5: Solve for x
    x = 166,255,236/8,229
  6. Step 6: Final answer
    x = 20,203.58

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.