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Finding the Fourth Proportional to 14,611.62, 20,163.73 and 8,238.22

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Solution

The fourth proportional to 14,611.62, 20,163.73 and 8,238.22 is: 11,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,611.62 : 20,163.73 = 8,238.22 : x
  2. Step 2: Convert to fraction form
    14,611.62/20,163.73 = 8,238.22/x
  3. Step 3: Cross multiply
    14,611.62x = 20,163.73 × 8,238.22
  4. Step 4: Simplify right side
    14,611.62x = 166,113,243.76
  5. Step 5: Solve for x
    x = 166,113,243.76/14,611.62
  6. Step 6: Final answer
    x = 11,368.57

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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.