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Finding the Fourth Proportional to 3,753.06, 5,623.15 and 2,655.62

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Solution

The fourth proportional to 3,753.06, 5,623.15 and 2,655.62 is: 3,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.06 : 5,623.15 = 2,655.62 : x
  2. Step 2: Convert to fraction form
    3,753.06/5,623.15 = 2,655.62/x
  3. Step 3: Cross multiply
    3,753.06x = 5,623.15 × 2,655.62
  4. Step 4: Simplify right side
    3,753.06x = 14,932,949.60
  5. Step 5: Solve for x
    x = 14,932,949.60/3,753.06
  6. Step 6: Final answer
    x = 3,978.87

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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.