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Finding the Third Proportional to 9,351,566 and 20,147,740

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Solution

The third proportional to 9,351,566 and 20,147,740 is: 43,407,855.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,351,566 : 20,147,740 = 20,147,740 : x
  2. Step 2: Convert to fraction form
    9,351,566/20,147,740 = 20,147,740/x
  3. Step 3: Cross multiply
    9,351,566x = 20,147,740 × 20,147,740
  4. Step 4: Simplify right side
    9,351,566x = 405,931,427,107,600
  5. Step 5: Solve for x
    x = 405,931,427,107,600/9,351,566
  6. Step 6: Final answer
    x = 43,407,855.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.