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Finding the Third Proportional to 11,276 and 16,861

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Solution

The third proportional to 11,276 and 16,861 is: 25,212.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276 : 16,861 = 16,861 : x
  2. Step 2: Convert to fraction form
    11,276/16,861 = 16,861/x
  3. Step 3: Cross multiply
    11,276x = 16,861 × 16,861
  4. Step 4: Simplify right side
    11,276x = 284,293,321
  5. Step 5: Solve for x
    x = 284,293,321/11,276
  6. Step 6: Final answer
    x = 25,212.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.