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Finding the Fourth Proportional to 18,163.71, 27,231.75 and 9,393.03

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Solution

The fourth proportional to 18,163.71, 27,231.75 and 9,393.03 is: 14,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,163.71 : 27,231.75 = 9,393.03 : x
  2. Step 2: Convert to fraction form
    18,163.71/27,231.75 = 9,393.03/x
  3. Step 3: Cross multiply
    18,163.71x = 27,231.75 × 9,393.03
  4. Step 4: Simplify right side
    18,163.71x = 255,788,644.70
  5. Step 5: Solve for x
    x = 255,788,644.70/18,163.71
  6. Step 6: Final answer
    x = 14,082.40

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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.