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Finding the Fourth Proportional to 3,832.96, 5,739.68 and 2,661.44

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Solution

The fourth proportional to 3,832.96, 5,739.68 and 2,661.44 is: 3,985.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.96 : 5,739.68 = 2,661.44 : x
  2. Step 2: Convert to fraction form
    3,832.96/5,739.68 = 2,661.44/x
  3. Step 3: Cross multiply
    3,832.96x = 5,739.68 × 2,661.44
  4. Step 4: Simplify right side
    3,832.96x = 15,275,813.94
  5. Step 5: Solve for x
    x = 15,275,813.94/3,832.96
  6. Step 6: Final answer
    x = 3,985.38

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1.5x scale

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.