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Finding the Fourth Proportional to 5,713.79, 8,571.77 and 2,015.60

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Solution

The fourth proportional to 5,713.79, 8,571.77 and 2,015.60 is: 3,023.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.79 : 8,571.77 = 2,015.60 : x
  2. Step 2: Convert to fraction form
    5,713.79/8,571.77 = 2,015.60/x
  3. Step 3: Cross multiply
    5,713.79x = 8,571.77 × 2,015.60
  4. Step 4: Simplify right side
    5,713.79x = 17,277,249.53
  5. Step 5: Solve for x
    x = 17,277,249.53/5,713.79
  6. Step 6: Final answer
    x = 3,023.78

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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.