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Finding the Fourth Proportional to 5,745.42, 8,618.76 and 4,575.42

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Solution

The fourth proportional to 5,745.42, 8,618.76 and 4,575.42 is: 6,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.42 : 8,618.76 = 4,575.42 : x
  2. Step 2: Convert to fraction form
    5,745.42/8,618.76 = 4,575.42/x
  3. Step 3: Cross multiply
    5,745.42x = 8,618.76 × 4,575.42
  4. Step 4: Simplify right side
    5,745.42x = 39,434,446.88
  5. Step 5: Solve for x
    x = 39,434,446.88/5,745.42
  6. Step 6: Final answer
    x = 6,863.63

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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.