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Finding the Fourth Proportional to 4,940.63, 7,410.95 and 2,018.93

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Solution

The fourth proportional to 4,940.63, 7,410.95 and 2,018.93 is: 3,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.63 : 7,410.95 = 2,018.93 : x
  2. Step 2: Convert to fraction form
    4,940.63/7,410.95 = 2,018.93/x
  3. Step 3: Cross multiply
    4,940.63x = 7,410.95 × 2,018.93
  4. Step 4: Simplify right side
    4,940.63x = 14,962,142.13
  5. Step 5: Solve for x
    x = 14,962,142.13/4,940.63
  6. Step 6: Final answer
    x = 3,028.39

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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.