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Finding the Third Proportional to 11,477.25 and 20,211.75

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Solution

The third proportional to 11,477.25 and 20,211.75 is: 35,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,477.25 : 20,211.75 = 20,211.75 : x
  2. Step 2: Convert to fraction form
    11,477.25/20,211.75 = 20,211.75/x
  3. Step 3: Cross multiply
    11,477.25x = 20,211.75 × 20,211.75
  4. Step 4: Simplify right side
    11,477.25x = 408,514,838.06
  5. Step 5: Solve for x
    x = 408,514,838.06/11,477.25
  6. Step 6: Final answer
    x = 35,593.44

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.