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Finding the Fourth Proportional to 5,745.92, 8,618.92 and 2,625.28

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Solution

The fourth proportional to 5,745.92, 8,618.92 and 2,625.28 is: 3,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.92 : 8,618.92 = 2,625.28 : x
  2. Step 2: Convert to fraction form
    5,745.92/8,618.92 = 2,625.28/x
  3. Step 3: Cross multiply
    5,745.92x = 8,618.92 × 2,625.28
  4. Step 4: Simplify right side
    5,745.92x = 22,627,078.30
  5. Step 5: Solve for x
    x = 22,627,078.30/5,745.92
  6. Step 6: Final answer
    x = 3,937.94

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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.