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Finding the Third Proportional to 38,990,978 and 84,483,775

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Solution

The third proportional to 38,990,978 and 84,483,775 is: 183,055,378.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,990,978 : 84,483,775 = 84,483,775 : x
  2. Step 2: Convert to fraction form
    38,990,978/84,483,775 = 84,483,775/x
  3. Step 3: Cross multiply
    38,990,978x = 84,483,775 × 84,483,775
  4. Step 4: Simplify right side
    38,990,978x = 7,137,508,238,250,625
  5. Step 5: Solve for x
    x = 7,137,508,238,250,625/38,990,978
  6. Step 6: Final answer
    x = 183,055,378.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.