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Finding the Fourth Proportional to 3,863.58, 5,796.21 and 1,266.42

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Solution

The fourth proportional to 3,863.58, 5,796.21 and 1,266.42 is: 1,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,863.58 : 5,796.21 = 1,266.42 : x
  2. Step 2: Convert to fraction form
    3,863.58/5,796.21 = 1,266.42/x
  3. Step 3: Cross multiply
    3,863.58x = 5,796.21 × 1,266.42
  4. Step 4: Simplify right side
    3,863.58x = 7,340,436.27
  5. Step 5: Solve for x
    x = 7,340,436.27/3,863.58
  6. Step 6: Final answer
    x = 1,899.91

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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.