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Finding the Fourth Proportional to 5,073.99, 7,611.26 and 1,911.39

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Solution

The fourth proportional to 5,073.99, 7,611.26 and 1,911.39 is: 2,867.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,073.99 : 7,611.26 = 1,911.39 : x
  2. Step 2: Convert to fraction form
    5,073.99/7,611.26 = 1,911.39/x
  3. Step 3: Cross multiply
    5,073.99x = 7,611.26 × 1,911.39
  4. Step 4: Simplify right side
    5,073.99x = 14,548,076.69
  5. Step 5: Solve for x
    x = 14,548,076.69/5,073.99
  6. Step 6: Final answer
    x = 2,867.19

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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.