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Finding the Third Proportional to 1,283,896 and 1,986,939

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Solution

The third proportional to 1,283,896 and 1,986,939 is: 3,074,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,896 : 1,986,939 = 1,986,939 : x
  2. Step 2: Convert to fraction form
    1,283,896/1,986,939 = 1,986,939/x
  3. Step 3: Cross multiply
    1,283,896x = 1,986,939 × 1,986,939
  4. Step 4: Simplify right side
    1,283,896x = 3,947,926,589,721
  5. Step 5: Solve for x
    x = 3,947,926,589,721/1,283,896
  6. Step 6: Final answer
    x = 3,074,958.24

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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.