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Finding the Fourth Proportional to 4,986.48, 7,474.80 and 2,067.24

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Solution

The fourth proportional to 4,986.48, 7,474.80 and 2,067.24 is: 3,098.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.48 : 7,474.80 = 2,067.24 : x
  2. Step 2: Convert to fraction form
    4,986.48/7,474.80 = 2,067.24/x
  3. Step 3: Cross multiply
    4,986.48x = 7,474.80 × 2,067.24
  4. Step 4: Simplify right side
    4,986.48x = 15,452,205.55
  5. Step 5: Solve for x
    x = 15,452,205.55/4,986.48
  6. Step 6: Final answer
    x = 3,098.82

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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.