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Finding the Fourth Proportional to 6,717.99, 9,270.81 and 3,923.49

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Solution

The fourth proportional to 6,717.99, 9,270.81 and 3,923.49 is: 5,414.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,717.99 : 9,270.81 = 3,923.49 : x
  2. Step 2: Convert to fraction form
    6,717.99/9,270.81 = 3,923.49/x
  3. Step 3: Cross multiply
    6,717.99x = 9,270.81 × 3,923.49
  4. Step 4: Simplify right side
    6,717.99x = 36,373,930.33
  5. Step 5: Solve for x
    x = 36,373,930.33/6,717.99
  6. Step 6: Final answer
    x = 5,414.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.