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Finding the Third Proportional to 1,986,801.75 and 4,276,845.56

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Solution

The third proportional to 1,986,801.75 and 4,276,845.56 is: 9,206,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,801.75 : 4,276,845.56 = 4,276,845.56 : x
  2. Step 2: Convert to fraction form
    1,986,801.75/4,276,845.56 = 4,276,845.56/x
  3. Step 3: Cross multiply
    1,986,801.75x = 4,276,845.56 × 4,276,845.56
  4. Step 4: Simplify right side
    1,986,801.75x = 18,291,407,965,475.94
  5. Step 5: Solve for x
    x = 18,291,407,965,475.94/1,986,801.75
  6. Step 6: Final answer
    x = 9,206,458.55

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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.