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Finding the Fourth Proportional to 5,747.15, 8,620.12 and 3,555.29

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Solution

The fourth proportional to 5,747.15, 8,620.12 and 3,555.29 is: 5,332.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,747.15 : 8,620.12 = 3,555.29 : x
  2. Step 2: Convert to fraction form
    5,747.15/8,620.12 = 3,555.29/x
  3. Step 3: Cross multiply
    5,747.15x = 8,620.12 × 3,555.29
  4. Step 4: Simplify right side
    5,747.15x = 30,647,052.43
  5. Step 5: Solve for x
    x = 30,647,052.43/5,747.15
  6. Step 6: Final answer
    x = 5,332.56

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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.