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Finding the Fourth Proportional to 8,571.76, 12,845.22 and 4,184.26

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Solution

The fourth proportional to 8,571.76, 12,845.22 and 4,184.26 is: 6,270.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.76 : 12,845.22 = 4,184.26 : x
  2. Step 2: Convert to fraction form
    8,571.76/12,845.22 = 4,184.26/x
  3. Step 3: Cross multiply
    8,571.76x = 12,845.22 × 4,184.26
  4. Step 4: Simplify right side
    8,571.76x = 53,747,740.24
  5. Step 5: Solve for x
    x = 53,747,740.24/8,571.76
  6. Step 6: Final answer
    x = 6,270.33

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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.