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Finding the Third Proportional to 11,187 and 16,779

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Solution

The third proportional to 11,187 and 16,779 is: 25,166.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187 : 16,779 = 16,779 : x
  2. Step 2: Convert to fraction form
    11,187/16,779 = 16,779/x
  3. Step 3: Cross multiply
    11,187x = 16,779 × 16,779
  4. Step 4: Simplify right side
    11,187x = 281,534,841
  5. Step 5: Solve for x
    x = 281,534,841/11,187
  6. Step 6: Final answer
    x = 25,166.25

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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.