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Finding the Third Proportional to 3,769,379,721 and 8,286,496,930

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Solution

The third proportional to 3,769,379,721 and 8,286,496,930 is: 18,216,798,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769,379,721 : 8,286,496,930 = 8,286,496,930 : x
  2. Step 2: Convert to fraction form
    3,769,379,721/8,286,496,930 = 8,286,496,930/x
  3. Step 3: Cross multiply
    3,769,379,721x = 8,286,496,930 × 8,286,496,930
  4. Step 4: Simplify right side
    3,769,379,721x = 68,666,031,370,899,423,232
  5. Step 5: Solve for x
    x = 68,666,031,370,899,423,232/3,769,379,721
  6. Step 6: Final answer
    x = 18,216,798,638.87

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.