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Finding the Fourth Proportional to 3,611.62, 4,984.94 and 2,040.62

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Solution

The fourth proportional to 3,611.62, 4,984.94 and 2,040.62 is: 2,816.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.62 : 4,984.94 = 2,040.62 : x
  2. Step 2: Convert to fraction form
    3,611.62/4,984.94 = 2,040.62/x
  3. Step 3: Cross multiply
    3,611.62x = 4,984.94 × 2,040.62
  4. Step 4: Simplify right side
    3,611.62x = 10,172,358.06
  5. Step 5: Solve for x
    x = 10,172,358.06/3,611.62
  6. Step 6: Final answer
    x = 2,816.57

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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.