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Finding the Third Proportional to 11,712 and 16,500

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Solution

The third proportional to 11,712 and 16,500 is: 23,245.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712 : 16,500 = 16,500 : x
  2. Step 2: Convert to fraction form
    11,712/16,500 = 16,500/x
  3. Step 3: Cross multiply
    11,712x = 16,500 × 16,500
  4. Step 4: Simplify right side
    11,712x = 272,250,000
  5. Step 5: Solve for x
    x = 272,250,000/11,712
  6. Step 6: Final answer
    x = 23,245.39

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.