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Finding the Fourth Proportional to 3,651.66, 5,447.70 and 3,551.22

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Solution

The fourth proportional to 3,651.66, 5,447.70 and 3,551.22 is: 5,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.66 : 5,447.70 = 3,551.22 : x
  2. Step 2: Convert to fraction form
    3,651.66/5,447.70 = 3,551.22/x
  3. Step 3: Cross multiply
    3,651.66x = 5,447.70 × 3,551.22
  4. Step 4: Simplify right side
    3,651.66x = 19,345,981.19
  5. Step 5: Solve for x
    x = 19,345,981.19/3,651.66
  6. Step 6: Final answer
    x = 5,297.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.