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Finding the Fourth Proportional to 4,940.64, 7,410.95 and 2,018.94

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Solution

The fourth proportional to 4,940.64, 7,410.95 and 2,018.94 is: 3,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.64 : 7,410.95 = 2,018.94 : x
  2. Step 2: Convert to fraction form
    4,940.64/7,410.95 = 2,018.94/x
  3. Step 3: Cross multiply
    4,940.64x = 7,410.95 × 2,018.94
  4. Step 4: Simplify right side
    4,940.64x = 14,962,252.44
  5. Step 5: Solve for x
    x = 14,962,252.44/4,940.64
  6. Step 6: Final answer
    x = 3,028.41

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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.