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Finding the Third Proportional to 9,380,286 and 20,556,180

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Solution

The third proportional to 9,380,286 and 20,556,180 is: 45,047,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,380,286 : 20,556,180 = 20,556,180 : x
  2. Step 2: Convert to fraction form
    9,380,286/20,556,180 = 20,556,180/x
  3. Step 3: Cross multiply
    9,380,286x = 20,556,180 × 20,556,180
  4. Step 4: Simplify right side
    9,380,286x = 422,556,536,192,400
  5. Step 5: Solve for x
    x = 422,556,536,192,400/9,380,286
  6. Step 6: Final answer
    x = 45,047,297.73

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.