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Finding the Third Proportional to 11,274 and 16,815

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Solution

The third proportional to 11,274 and 16,815 is: 25,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274 : 16,815 = 16,815 : x
  2. Step 2: Convert to fraction form
    11,274/16,815 = 16,815/x
  3. Step 3: Cross multiply
    11,274x = 16,815 × 16,815
  4. Step 4: Simplify right side
    11,274x = 282,744,225
  5. Step 5: Solve for x
    x = 282,744,225/11,274
  6. Step 6: Final answer
    x = 25,079.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.