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Finding the Third Proportional to 1,211,376,987 and 2,629,496,977

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Solution

The third proportional to 1,211,376,987 and 2,629,496,977 is: 5,707,764,326.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,376,987 : 2,629,496,977 = 2,629,496,977 : x
  2. Step 2: Convert to fraction form
    1,211,376,987/2,629,496,977 = 2,629,496,977/x
  3. Step 3: Cross multiply
    1,211,376,987x = 2,629,496,977 × 2,629,496,977
  4. Step 4: Simplify right side
    1,211,376,987x = 6,914,254,352,052,139,008
  5. Step 5: Solve for x
    x = 6,914,254,352,052,139,008/1,211,376,987
  6. Step 6: Final answer
    x = 5,707,764,326.26

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.