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Finding the Third Proportional to 1,863,978 and 3,999,828

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Solution

The third proportional to 1,863,978 and 3,999,828 is: 8,583,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863,978 : 3,999,828 = 3,999,828 : x
  2. Step 2: Convert to fraction form
    1,863,978/3,999,828 = 3,999,828/x
  3. Step 3: Cross multiply
    1,863,978x = 3,999,828 × 3,999,828
  4. Step 4: Simplify right side
    1,863,978x = 15,998,624,029,584
  5. Step 5: Solve for x
    x = 15,998,624,029,584/1,863,978
  6. Step 6: Final answer
    x = 8,583,054.11

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