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Finding the Fourth Proportional to 14,940.43, 22,410.64 and 4,942.49

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Solution

The fourth proportional to 14,940.43, 22,410.64 and 4,942.49 is: 7,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.43 : 22,410.64 = 4,942.49 : x
  2. Step 2: Convert to fraction form
    14,940.43/22,410.64 = 4,942.49/x
  3. Step 3: Cross multiply
    14,940.43x = 22,410.64 × 4,942.49
  4. Step 4: Simplify right side
    14,940.43x = 110,764,407.76
  5. Step 5: Solve for x
    x = 110,764,407.76/14,940.43
  6. Step 6: Final answer
    x = 7,413.74

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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.