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Finding the Fourth Proportional to 3,611.54, 5,391.16 and 3,341

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Solution

The fourth proportional to 3,611.54, 5,391.16 and 3,341 is: 4,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.54 : 5,391.16 = 3,341 : x
  2. Step 2: Convert to fraction form
    3,611.54/5,391.16 = 3,341/x
  3. Step 3: Cross multiply
    3,611.54x = 5,391.16 × 3,341
  4. Step 4: Simplify right side
    3,611.54x = 18,011,865.56
  5. Step 5: Solve for x
    x = 18,011,865.56/3,611.54
  6. Step 6: Final answer
    x = 4,987.31

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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.