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Finding the Third Proportional to 13,956 and 16,932

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Solution

The third proportional to 13,956 and 16,932 is: 20,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956 : 16,932 = 16,932 : x
  2. Step 2: Convert to fraction form
    13,956/16,932 = 16,932/x
  3. Step 3: Cross multiply
    13,956x = 16,932 × 16,932
  4. Step 4: Simplify right side
    13,956x = 286,692,624
  5. Step 5: Solve for x
    x = 286,692,624/13,956
  6. Step 6: Final answer
    x = 20,542.61

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.