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Finding the Fourth Proportional to 6,640.04, 9,963.42 and 4,174.44

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Solution

The fourth proportional to 6,640.04, 9,963.42 and 4,174.44 is: 6,263.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.04 : 9,963.42 = 4,174.44 : x
  2. Step 2: Convert to fraction form
    6,640.04/9,963.42 = 4,174.44/x
  3. Step 3: Cross multiply
    6,640.04x = 9,963.42 × 4,174.44
  4. Step 4: Simplify right side
    6,640.04x = 41,591,698.98
  5. Step 5: Solve for x
    x = 41,591,698.98/6,640.04
  6. Step 6: Final answer
    x = 6,263.77

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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.