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Finding the Third Proportional to 8,556.75 and 13,146.75

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Solution

The third proportional to 8,556.75 and 13,146.75 is: 20,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.75 : 13,146.75 = 13,146.75 : x
  2. Step 2: Convert to fraction form
    8,556.75/13,146.75 = 13,146.75/x
  3. Step 3: Cross multiply
    8,556.75x = 13,146.75 × 13,146.75
  4. Step 4: Simplify right side
    8,556.75x = 172,837,035.56
  5. Step 5: Solve for x
    x = 172,837,035.56/8,556.75
  6. Step 6: Final answer
    x = 20,198.91

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.