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Finding the Fourth Proportional to 3,651.99, 5,472.51 and 3,378.61

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Solution

The fourth proportional to 3,651.99, 5,472.51 and 3,378.61 is: 5,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.99 : 5,472.51 = 3,378.61 : x
  2. Step 2: Convert to fraction form
    3,651.99/5,472.51 = 3,378.61/x
  3. Step 3: Cross multiply
    3,651.99x = 5,472.51 × 3,378.61
  4. Step 4: Simplify right side
    3,651.99x = 18,489,490.19
  5. Step 5: Solve for x
    x = 18,489,490.19/3,651.99
  6. Step 6: Final answer
    x = 5,062.86

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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.