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Finding the Fourth Proportional to 6,936.48, 9,571.85 and 3,951.77

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Solution

The fourth proportional to 6,936.48, 9,571.85 and 3,951.77 is: 5,453.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,936.48 : 9,571.85 = 3,951.77 : x
  2. Step 2: Convert to fraction form
    6,936.48/9,571.85 = 3,951.77/x
  3. Step 3: Cross multiply
    6,936.48x = 9,571.85 × 3,951.77
  4. Step 4: Simplify right side
    6,936.48x = 37,825,682.06
  5. Step 5: Solve for x
    x = 37,825,682.06/6,936.48
  6. Step 6: Final answer
    x = 5,453.15

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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.