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Finding the Third Proportional to 38,498,790 and 85,605,288

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Solution

The third proportional to 38,498,790 and 85,605,288 is: 190,350,536.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,498,790 : 85,605,288 = 85,605,288 : x
  2. Step 2: Convert to fraction form
    38,498,790/85,605,288 = 85,605,288/x
  3. Step 3: Cross multiply
    38,498,790x = 85,605,288 × 85,605,288
  4. Step 4: Simplify right side
    38,498,790x = 7,328,265,333,562,944
  5. Step 5: Solve for x
    x = 7,328,265,333,562,944/38,498,790
  6. Step 6: Final answer
    x = 190,350,536.56

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.