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Finding the Third Proportional to 11,264 and 16,720

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Solution

The third proportional to 11,264 and 16,720 is: 24,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,264 : 16,720 = 16,720 : x
  2. Step 2: Convert to fraction form
    11,264/16,720 = 16,720/x
  3. Step 3: Cross multiply
    11,264x = 16,720 × 16,720
  4. Step 4: Simplify right side
    11,264x = 279,558,400
  5. Step 5: Solve for x
    x = 279,558,400/11,264
  6. Step 6: Final answer
    x = 24,818.75

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.