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Finding the Third Proportional to 12,956 and 18,682

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Solution

The third proportional to 12,956 and 18,682 is: 26,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956 : 18,682 = 18,682 : x
  2. Step 2: Convert to fraction form
    12,956/18,682 = 18,682/x
  3. Step 3: Cross multiply
    12,956x = 18,682 × 18,682
  4. Step 4: Simplify right side
    12,956x = 349,017,124
  5. Step 5: Solve for x
    x = 349,017,124/12,956
  6. Step 6: Final answer
    x = 26,938.65

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.