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Finding the Third Proportional to 18,650,746 and 40,135,843

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Solution

The third proportional to 18,650,746 and 40,135,843 is: 86,371,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650,746 : 40,135,843 = 40,135,843 : x
  2. Step 2: Convert to fraction form
    18,650,746/40,135,843 = 40,135,843/x
  3. Step 3: Cross multiply
    18,650,746x = 40,135,843 × 40,135,843
  4. Step 4: Simplify right side
    18,650,746x = 1,610,885,893,320,649
  5. Step 5: Solve for x
    x = 1,610,885,893,320,649/18,650,746
  6. Step 6: Final answer
    x = 86,371,123.89

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.