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Finding the Fourth Proportional to 4,940.53, 7,410.80 and 2,018.32

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Solution

The fourth proportional to 4,940.53, 7,410.80 and 2,018.32 is: 3,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.53 : 7,410.80 = 2,018.32 : x
  2. Step 2: Convert to fraction form
    4,940.53/7,410.80 = 2,018.32/x
  3. Step 3: Cross multiply
    4,940.53x = 7,410.80 × 2,018.32
  4. Step 4: Simplify right side
    4,940.53x = 14,957,365.86
  5. Step 5: Solve for x
    x = 14,957,365.86/4,940.53
  6. Step 6: Final answer
    x = 3,027.48

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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.