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Finding the Third Proportional to 39,922,992 and 81,293,076

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Solution

The third proportional to 39,922,992 and 81,293,076 is: 165,532,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,922,992 : 81,293,076 = 81,293,076 : x
  2. Step 2: Convert to fraction form
    39,922,992/81,293,076 = 81,293,076/x
  3. Step 3: Cross multiply
    39,922,992x = 81,293,076 × 81,293,076
  4. Step 4: Simplify right side
    39,922,992x = 6,608,564,205,541,776
  5. Step 5: Solve for x
    x = 6,608,564,205,541,776/39,922,992
  6. Step 6: Final answer
    x = 165,532,788.86

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.