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Finding the Third Proportional to 1,269,605,448 and 1,960,981,020

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Solution

The third proportional to 1,269,605,448 and 1,960,981,020 is: 3,028,851,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,605,448 : 1,960,981,020 = 1,960,981,020 : x
  2. Step 2: Convert to fraction form
    1,269,605,448/1,960,981,020 = 1,960,981,020/x
  3. Step 3: Cross multiply
    1,269,605,448x = 1,960,981,020 × 1,960,981,020
  4. Step 4: Simplify right side
    1,269,605,448x = 3,845,446,560,800,240,640
  5. Step 5: Solve for x
    x = 3,845,446,560,800,240,640/1,269,605,448
  6. Step 6: Final answer
    x = 3,028,851,653.76

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.