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Finding the Third Proportional to 3,986,907.75 and 5,979,062.25

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Solution

The third proportional to 3,986,907.75 and 5,979,062.25 is: 8,966,644.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,907.75 : 5,979,062.25 = 5,979,062.25 : x
  2. Step 2: Convert to fraction form
    3,986,907.75/5,979,062.25 = 5,979,062.25/x
  3. Step 3: Cross multiply
    3,986,907.75x = 5,979,062.25 × 5,979,062.25
  4. Step 4: Simplify right side
    3,986,907.75x = 35,749,185,389,375.06
  5. Step 5: Solve for x
    x = 35,749,185,389,375.06/3,986,907.75
  6. Step 6: Final answer
    x = 8,966,644.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.