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Finding the Fourth Proportional to 7,591.87, 11,393.88 and 3,212.38

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Solution

The fourth proportional to 7,591.87, 11,393.88 and 3,212.38 is: 4,821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,591.87 : 11,393.88 = 3,212.38 : x
  2. Step 2: Convert to fraction form
    7,591.87/11,393.88 = 3,212.38/x
  3. Step 3: Cross multiply
    7,591.87x = 11,393.88 × 3,212.38
  4. Step 4: Simplify right side
    7,591.87x = 36,601,472.23
  5. Step 5: Solve for x
    x = 36,601,472.23/7,591.87
  6. Step 6: Final answer
    x = 4,821.14

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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.