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Finding the Fourth Proportional to 11,163.42, 15,407.42 and 6,450.44

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Solution

The fourth proportional to 11,163.42, 15,407.42 and 6,450.44 is: 8,902.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.42 : 15,407.42 = 6,450.44 : x
  2. Step 2: Convert to fraction form
    11,163.42/15,407.42 = 6,450.44/x
  3. Step 3: Cross multiply
    11,163.42x = 15,407.42 × 6,450.44
  4. Step 4: Simplify right side
    11,163.42x = 99,384,528.98
  5. Step 5: Solve for x
    x = 99,384,528.98/11,163.42
  6. Step 6: Final answer
    x = 8,902.70

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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.