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Finding the Third Proportional to 63,969,864 and 91,169,962

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Solution

The third proportional to 63,969,864 and 91,169,962 is: 129,935,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,969,864 : 91,169,962 = 91,169,962 : x
  2. Step 2: Convert to fraction form
    63,969,864/91,169,962 = 91,169,962/x
  3. Step 3: Cross multiply
    63,969,864x = 91,169,962 × 91,169,962
  4. Step 4: Simplify right side
    63,969,864x = 8,311,961,971,081,444
  5. Step 5: Solve for x
    x = 8,311,961,971,081,444/63,969,864
  6. Step 6: Final answer
    x = 129,935,589.22

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.