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Finding the Fourth Proportional to 6,383.88, 9,583.92 and 6,121.44

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Solution

The fourth proportional to 6,383.88, 9,583.92 and 6,121.44 is: 9,189.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,383.88 : 9,583.92 = 6,121.44 : x
  2. Step 2: Convert to fraction form
    6,383.88/9,583.92 = 6,121.44/x
  3. Step 3: Cross multiply
    6,383.88x = 9,583.92 × 6,121.44
  4. Step 4: Simplify right side
    6,383.88x = 58,667,391.24
  5. Step 5: Solve for x
    x = 58,667,391.24/6,383.88
  6. Step 6: Final answer
    x = 9,189.93

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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.