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Finding the Fourth Proportional to 5,074.99, 7,611.91 and 2,405.94

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Solution

The fourth proportional to 5,074.99, 7,611.91 and 2,405.94 is: 3,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.99 : 7,611.91 = 2,405.94 : x
  2. Step 2: Convert to fraction form
    5,074.99/7,611.91 = 2,405.94/x
  3. Step 3: Cross multiply
    5,074.99x = 7,611.91 × 2,405.94
  4. Step 4: Simplify right side
    5,074.99x = 18,313,764.19
  5. Step 5: Solve for x
    x = 18,313,764.19/5,074.99
  6. Step 6: Final answer
    x = 3,608.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.