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Finding the Third Proportional to 21,351,786,609 and 45,916,943,682

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Solution

The third proportional to 21,351,786,609 and 45,916,943,682 is: 98,744,229,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351,786,609 : 45,916,943,682 = 45,916,943,682 : x
  2. Step 2: Convert to fraction form
    21,351,786,609/45,916,943,682 = 45,916,943,682/x
  3. Step 3: Cross multiply
    21,351,786,609x = 45,916,943,682 × 45,916,943,682
  4. Step 4: Simplify right side
    21,351,786,609x = 2,108,365,717,095,959,756,800
  5. Step 5: Solve for x
    x = 2,108,365,717,095,959,756,800/21,351,786,609
  6. Step 6: Final answer
    x = 98,744,229,497.28

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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.