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Finding the Third Proportional to 5,387,187 and 11,628,978

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Solution

The third proportional to 5,387,187 and 11,628,978 is: 25,102,735.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,187 : 11,628,978 = 11,628,978 : x
  2. Step 2: Convert to fraction form
    5,387,187/11,628,978 = 11,628,978/x
  3. Step 3: Cross multiply
    5,387,187x = 11,628,978 × 11,628,978
  4. Step 4: Simplify right side
    5,387,187x = 135,233,129,324,484
  5. Step 5: Solve for x
    x = 135,233,129,324,484/5,387,187
  6. Step 6: Final answer
    x = 25,102,735.31

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.