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Finding the Fourth Proportional to 4,502.20, 6,745.20 and 4,231.12

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Solution

The fourth proportional to 4,502.20, 6,745.20 and 4,231.12 is: 6,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,502.20 : 6,745.20 = 4,231.12 : x
  2. Step 2: Convert to fraction form
    4,502.20/6,745.20 = 4,231.12/x
  3. Step 3: Cross multiply
    4,502.20x = 6,745.20 × 4,231.12
  4. Step 4: Simplify right side
    4,502.20x = 28,539,750.62
  5. Step 5: Solve for x
    x = 28,539,750.62/4,502.20
  6. Step 6: Final answer
    x = 6,339.07

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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.