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Finding the Fourth Proportional to 6,951.90, 9,591.51 and 3,967.56

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Solution

The fourth proportional to 6,951.90, 9,591.51 and 3,967.56 is: 5,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,951.90 : 9,591.51 = 3,967.56 : x
  2. Step 2: Convert to fraction form
    6,951.90/9,591.51 = 3,967.56/x
  3. Step 3: Cross multiply
    6,951.90x = 9,591.51 × 3,967.56
  4. Step 4: Simplify right side
    6,951.90x = 38,054,891.42
  5. Step 5: Solve for x
    x = 38,054,891.42/6,951.90
  6. Step 6: Final answer
    x = 5,474.03

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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.