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Finding the Fourth Proportional to 5,906.50, 8,152.05 and 3,422.50

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Solution

The fourth proportional to 5,906.50, 8,152.05 and 3,422.50 is: 4,723.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,906.50 : 8,152.05 = 3,422.50 : x
  2. Step 2: Convert to fraction form
    5,906.50/8,152.05 = 3,422.50/x
  3. Step 3: Cross multiply
    5,906.50x = 8,152.05 × 3,422.50
  4. Step 4: Simplify right side
    5,906.50x = 27,900,391.13
  5. Step 5: Solve for x
    x = 27,900,391.13/5,906.50
  6. Step 6: Final answer
    x = 4,723.68

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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.