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Finding the Fourth Proportional to 6,826,652.52, 9,420,751.74 and 3,770,866.78

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Solution

The fourth proportional to 6,826,652.52, 9,420,751.74 and 3,770,866.78 is: 5,203,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,826,652.52 : 9,420,751.74 = 3,770,866.78 : x
  2. Step 2: Convert to fraction form
    6,826,652.52/9,420,751.74 = 3,770,866.78/x
  3. Step 3: Cross multiply
    6,826,652.52x = 9,420,751.74 × 3,770,866.78
  4. Step 4: Simplify right side
    6,826,652.52x = 35,524,399,778,993.20
  5. Step 5: Solve for x
    x = 35,524,399,778,993.20/6,826,652.52
  6. Step 6: Final answer
    x = 5,203,780.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.