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Finding the Third Proportional to 3,876,471,458 and 8,454,543,454

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Solution

The third proportional to 3,876,471,458 and 8,454,543,454 is: 18,439,270,297.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876,471,458 : 8,454,543,454 = 8,454,543,454 : x
  2. Step 2: Convert to fraction form
    3,876,471,458/8,454,543,454 = 8,454,543,454/x
  3. Step 3: Cross multiply
    3,876,471,458x = 8,454,543,454 × 8,454,543,454
  4. Step 4: Simplify right side
    3,876,471,458x = 71,479,305,015,574,249,472
  5. Step 5: Solve for x
    x = 71,479,305,015,574,249,472/3,876,471,458
  6. Step 6: Final answer
    x = 18,439,270,297.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.