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Finding the Fourth Proportional to 3,650.87, 5,478.64 and 2,008.53

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Solution

The fourth proportional to 3,650.87, 5,478.64 and 2,008.53 is: 3,014.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.87 : 5,478.64 = 2,008.53 : x
  2. Step 2: Convert to fraction form
    3,650.87/5,478.64 = 2,008.53/x
  3. Step 3: Cross multiply
    3,650.87x = 5,478.64 × 2,008.53
  4. Step 4: Simplify right side
    3,650.87x = 11,004,007.78
  5. Step 5: Solve for x
    x = 11,004,007.78/3,650.87
  6. Step 6: Final answer
    x = 3,014.08

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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.