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Finding the Fourth Proportional to 18,149.62, 27,200.53 and 16,965.81

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Solution

The fourth proportional to 18,149.62, 27,200.53 and 16,965.81 is: 25,426.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.62 : 27,200.53 = 16,965.81 : x
  2. Step 2: Convert to fraction form
    18,149.62/27,200.53 = 16,965.81/x
  3. Step 3: Cross multiply
    18,149.62x = 27,200.53 × 16,965.81
  4. Step 4: Simplify right side
    18,149.62x = 461,479,023.88
  5. Step 5: Solve for x
    x = 461,479,023.88/18,149.62
  6. Step 6: Final answer
    x = 25,426.37

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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.