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Finding the Fourth Proportional to 19,963.70, 29,940.15 and 5,923.70

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Solution

The fourth proportional to 19,963.70, 29,940.15 and 5,923.70 is: 8,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,963.70 : 29,940.15 = 5,923.70 : x
  2. Step 2: Convert to fraction form
    19,963.70/29,940.15 = 5,923.70/x
  3. Step 3: Cross multiply
    19,963.70x = 29,940.15 × 5,923.70
  4. Step 4: Simplify right side
    19,963.70x = 177,356,466.56
  5. Step 5: Solve for x
    x = 177,356,466.56/19,963.70
  6. Step 6: Final answer
    x = 8,883.95

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1.5x scale

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.