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Finding the Third Proportional to 31,904,968 and 70,189,712

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Solution

The third proportional to 31,904,968 and 70,189,712 is: 154,414,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,904,968 : 70,189,712 = 70,189,712 : x
  2. Step 2: Convert to fraction form
    31,904,968/70,189,712 = 70,189,712/x
  3. Step 3: Cross multiply
    31,904,968x = 70,189,712 × 70,189,712
  4. Step 4: Simplify right side
    31,904,968x = 4,926,595,670,642,944
  5. Step 5: Solve for x
    x = 4,926,595,670,642,944/31,904,968
  6. Step 6: Final answer
    x = 154,414,687.73

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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.