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Finding the Third Proportional to 12,204 and 19,656

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Solution

The third proportional to 12,204 and 19,656 is: 31,658.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,204 : 19,656 = 19,656 : x
  2. Step 2: Convert to fraction form
    12,204/19,656 = 19,656/x
  3. Step 3: Cross multiply
    12,204x = 19,656 × 19,656
  4. Step 4: Simplify right side
    12,204x = 386,358,336
  5. Step 5: Solve for x
    x = 386,358,336/12,204
  6. Step 6: Final answer
    x = 31,658.34

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.