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Finding the Third Proportional to 3,933,172 and 8,646,866

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Solution

The third proportional to 3,933,172 and 8,646,866 is: 19,009,667.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933,172 : 8,646,866 = 8,646,866 : x
  2. Step 2: Convert to fraction form
    3,933,172/8,646,866 = 8,646,866/x
  3. Step 3: Cross multiply
    3,933,172x = 8,646,866 × 8,646,866
  4. Step 4: Simplify right side
    3,933,172x = 74,768,291,621,956
  5. Step 5: Solve for x
    x = 74,768,291,621,956/3,933,172
  6. Step 6: Final answer
    x = 19,009,667.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.