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Finding the Third Proportional to 5,191,458,467,557 and 7,631,674,247,256

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Solution

The third proportional to 5,191,458,467,557 and 7,631,674,247,256 is: 11,218,899,694,605.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,458,467,557 : 7,631,674,247,256 = 7,631,674,247,256 : x
  2. Step 2: Convert to fraction form
    5,191,458,467,557/7,631,674,247,256 = 7,631,674,247,256/x
  3. Step 3: Cross multiply
    5,191,458,467,557x = 7,631,674,247,256 × 7,631,674,247,256
  4. Step 4: Simplify right side
    5,191,458,467,557x = 58,242,451,816,230,433,398,456,320
  5. Step 5: Solve for x
    x = 58,242,451,816,230,433,398,456,320/5,191,458,467,557
  6. Step 6: Final answer
    x = 11,218,899,694,605.13

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.