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Finding the Third Proportional to 3,939,531,438 and 6,147,802,670

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Solution

The third proportional to 3,939,531,438 and 6,147,802,670 is: 9,593,901,778.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,531,438 : 6,147,802,670 = 6,147,802,670 : x
  2. Step 2: Convert to fraction form
    3,939,531,438/6,147,802,670 = 6,147,802,670/x
  3. Step 3: Cross multiply
    3,939,531,438x = 6,147,802,670 × 6,147,802,670
  4. Step 4: Simplify right side
    3,939,531,438x = 37,795,477,669,259,132,928
  5. Step 5: Solve for x
    x = 37,795,477,669,259,132,928/3,939,531,438
  6. Step 6: Final answer
    x = 9,593,901,778.44

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.