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Finding the Fourth Proportional to 12,167.72, 18,251.60 and 2,933.72

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Solution

The fourth proportional to 12,167.72, 18,251.60 and 2,933.72 is: 4,400.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.72 : 18,251.60 = 2,933.72 : x
  2. Step 2: Convert to fraction form
    12,167.72/18,251.60 = 2,933.72/x
  3. Step 3: Cross multiply
    12,167.72x = 18,251.60 × 2,933.72
  4. Step 4: Simplify right side
    12,167.72x = 53,545,046.47
  5. Step 5: Solve for x
    x = 53,545,046.47/12,167.72
  6. Step 6: Final answer
    x = 4,400.58

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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.