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Finding the Third Proportional to 11,100 and 16,690

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Solution

The third proportional to 11,100 and 16,690 is: 25,095.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100 : 16,690 = 16,690 : x
  2. Step 2: Convert to fraction form
    11,100/16,690 = 16,690/x
  3. Step 3: Cross multiply
    11,100x = 16,690 × 16,690
  4. Step 4: Simplify right side
    11,100x = 278,556,100
  5. Step 5: Solve for x
    x = 278,556,100/11,100
  6. Step 6: Final answer
    x = 25,095.14

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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.