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Finding the Fourth Proportional to 3,825.92, 5,733.32 and 2,178.99

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Solution

The fourth proportional to 3,825.92, 5,733.32 and 2,178.99 is: 3,265.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.92 : 5,733.32 = 2,178.99 : x
  2. Step 2: Convert to fraction form
    3,825.92/5,733.32 = 2,178.99/x
  3. Step 3: Cross multiply
    3,825.92x = 5,733.32 × 2,178.99
  4. Step 4: Simplify right side
    3,825.92x = 12,492,836.05
  5. Step 5: Solve for x
    x = 12,492,836.05/3,825.92
  6. Step 6: Final answer
    x = 3,265.31

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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.