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Finding the Fourth Proportional to 18,067.53, 27,089.91 and 8,709.91

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Solution

The fourth proportional to 18,067.53, 27,089.91 and 8,709.91 is: 13,059.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.53 : 27,089.91 = 8,709.91 : x
  2. Step 2: Convert to fraction form
    18,067.53/27,089.91 = 8,709.91/x
  3. Step 3: Cross multiply
    18,067.53x = 27,089.91 × 8,709.91
  4. Step 4: Simplify right side
    18,067.53x = 235,950,678.01
  5. Step 5: Solve for x
    x = 235,950,678.01/18,067.53
  6. Step 6: Final answer
    x = 13,059.38

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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.