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Finding the Fourth Proportional to 11,963.55, 17,940.67 and 4,944.70

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Solution

The fourth proportional to 11,963.55, 17,940.67 and 4,944.70 is: 7,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,963.55 : 17,940.67 = 4,944.70 : x
  2. Step 2: Convert to fraction form
    11,963.55/17,940.67 = 4,944.70/x
  3. Step 3: Cross multiply
    11,963.55x = 17,940.67 × 4,944.70
  4. Step 4: Simplify right side
    11,963.55x = 88,711,116.52
  5. Step 5: Solve for x
    x = 88,711,116.52/11,963.55
  6. Step 6: Final answer
    x = 7,415.12

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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.