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Finding the Third Proportional to 12,742 and 26,384

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Solution

The third proportional to 12,742 and 26,384 is: 54,631.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742 : 26,384 = 26,384 : x
  2. Step 2: Convert to fraction form
    12,742/26,384 = 26,384/x
  3. Step 3: Cross multiply
    12,742x = 26,384 × 26,384
  4. Step 4: Simplify right side
    12,742x = 696,115,456
  5. Step 5: Solve for x
    x = 696,115,456/12,742
  6. Step 6: Final answer
    x = 54,631.57

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.