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Finding the Fourth Proportional to 3,753.92, 5,635.36 and 2,216

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Solution

The fourth proportional to 3,753.92, 5,635.36 and 2,216 is: 3,326.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.92 : 5,635.36 = 2,216 : x
  2. Step 2: Convert to fraction form
    3,753.92/5,635.36 = 2,216/x
  3. Step 3: Cross multiply
    3,753.92x = 5,635.36 × 2,216
  4. Step 4: Simplify right side
    3,753.92x = 12,487,957.76
  5. Step 5: Solve for x
    x = 12,487,957.76/3,753.92
  6. Step 6: Final answer
    x = 3,326.64

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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.