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Finding the Fourth Proportional to 3,611.24, 4,974.16 and 3,369.32

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Solution

The fourth proportional to 3,611.24, 4,974.16 and 3,369.32 is: 4,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.24 : 4,974.16 = 3,369.32 : x
  2. Step 2: Convert to fraction form
    3,611.24/4,974.16 = 3,369.32/x
  3. Step 3: Cross multiply
    3,611.24x = 4,974.16 × 3,369.32
  4. Step 4: Simplify right side
    3,611.24x = 16,759,536.77
  5. Step 5: Solve for x
    x = 16,759,536.77/3,611.24
  6. Step 6: Final answer
    x = 4,640.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.