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Finding the Third Proportional to 51,690,788 and 80,028,710

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Solution

The third proportional to 51,690,788 and 80,028,710 is: 123,902,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,690,788 : 80,028,710 = 80,028,710 : x
  2. Step 2: Convert to fraction form
    51,690,788/80,028,710 = 80,028,710/x
  3. Step 3: Cross multiply
    51,690,788x = 80,028,710 × 80,028,710
  4. Step 4: Simplify right side
    51,690,788x = 6,404,594,424,264,100
  5. Step 5: Solve for x
    x = 6,404,594,424,264,100/51,690,788
  6. Step 6: Final answer
    x = 123,902,046.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.