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Finding the Fourth Proportional to 7,221.82, 10,832.72 and 2,604.82

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Solution

The fourth proportional to 7,221.82, 10,832.72 and 2,604.82 is: 3,907.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.82 : 10,832.72 = 2,604.82 : x
  2. Step 2: Convert to fraction form
    7,221.82/10,832.72 = 2,604.82/x
  3. Step 3: Cross multiply
    7,221.82x = 10,832.72 × 2,604.82
  4. Step 4: Simplify right side
    7,221.82x = 28,217,231.55
  5. Step 5: Solve for x
    x = 28,217,231.55/7,221.82
  6. Step 6: Final answer
    x = 3,907.22

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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.