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Finding the Third Proportional to 5,387,144 and 11,628,856

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Solution

The third proportional to 5,387,144 and 11,628,856 is: 25,102,408.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387,144 : 11,628,856 = 11,628,856 : x
  2. Step 2: Convert to fraction form
    5,387,144/11,628,856 = 11,628,856/x
  3. Step 3: Cross multiply
    5,387,144x = 11,628,856 × 11,628,856
  4. Step 4: Simplify right side
    5,387,144x = 135,230,291,868,736
  5. Step 5: Solve for x
    x = 135,230,291,868,736/5,387,144
  6. Step 6: Final answer
    x = 25,102,408.97

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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.