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Finding the Third Proportional to 11,672 and 15,536

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Solution

The third proportional to 11,672 and 15,536 is: 20,679.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672 : 15,536 = 15,536 : x
  2. Step 2: Convert to fraction form
    11,672/15,536 = 15,536/x
  3. Step 3: Cross multiply
    11,672x = 15,536 × 15,536
  4. Step 4: Simplify right side
    11,672x = 241,367,296
  5. Step 5: Solve for x
    x = 241,367,296/11,672
  6. Step 6: Final answer
    x = 20,679.17

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.