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Finding the Fourth Proportional to 7,520.56, 10,376.92 and 4,163.22

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Solution

The fourth proportional to 7,520.56, 10,376.92 and 4,163.22 is: 5,744.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.56 : 10,376.92 = 4,163.22 : x
  2. Step 2: Convert to fraction form
    7,520.56/10,376.92 = 4,163.22/x
  3. Step 3: Cross multiply
    7,520.56x = 10,376.92 × 4,163.22
  4. Step 4: Simplify right side
    7,520.56x = 43,201,400.88
  5. Step 5: Solve for x
    x = 43,201,400.88/7,520.56
  6. Step 6: Final answer
    x = 5,744.44

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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.