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Finding the Third Proportional to 12,906 and 22,356

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Solution

The third proportional to 12,906 and 22,356 is: 38,725.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906 : 22,356 = 22,356 : x
  2. Step 2: Convert to fraction form
    12,906/22,356 = 22,356/x
  3. Step 3: Cross multiply
    12,906x = 22,356 × 22,356
  4. Step 4: Simplify right side
    12,906x = 499,790,736
  5. Step 5: Solve for x
    x = 499,790,736/12,906
  6. Step 6: Final answer
    x = 38,725.46

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.