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Finding the Third Proportional to 1,863,954 and 3,999,780

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Solution

The third proportional to 1,863,954 and 3,999,780 is: 8,582,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863,954 : 3,999,780 = 3,999,780 : x
  2. Step 2: Convert to fraction form
    1,863,954/3,999,780 = 3,999,780/x
  3. Step 3: Cross multiply
    1,863,954x = 3,999,780 × 3,999,780
  4. Step 4: Simplify right side
    1,863,954x = 15,998,240,048,400
  5. Step 5: Solve for x
    x = 15,998,240,048,400/1,863,954
  6. Step 6: Final answer
    x = 8,582,958.62

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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.