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Finding the Fourth Proportional to 6,212.07, 8,571.42 and 3,972.24

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Solution

The fourth proportional to 6,212.07, 8,571.42 and 3,972.24 is: 5,480.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,212.07 : 8,571.42 = 3,972.24 : x
  2. Step 2: Convert to fraction form
    6,212.07/8,571.42 = 3,972.24/x
  3. Step 3: Cross multiply
    6,212.07x = 8,571.42 × 3,972.24
  4. Step 4: Simplify right side
    6,212.07x = 34,047,737.38
  5. Step 5: Solve for x
    x = 34,047,737.38/6,212.07
  6. Step 6: Final answer
    x = 5,480.90

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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.