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Finding the Fourth Proportional to 3,661.57, 5,519.71 and 3,350.20

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Solution

The fourth proportional to 3,661.57, 5,519.71 and 3,350.20 is: 5,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.57 : 5,519.71 = 3,350.20 : x
  2. Step 2: Convert to fraction form
    3,661.57/5,519.71 = 3,350.20/x
  3. Step 3: Cross multiply
    3,661.57x = 5,519.71 × 3,350.20
  4. Step 4: Simplify right side
    3,661.57x = 18,492,132.44
  5. Step 5: Solve for x
    x = 18,492,132.44/3,661.57
  6. Step 6: Final answer
    x = 5,050.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.