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Finding the Fourth Proportional to 18,633.25, 27,908.95 and 17,174.87

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Solution

The fourth proportional to 18,633.25, 27,908.95 and 17,174.87 is: 25,724.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.25 : 27,908.95 = 17,174.87 : x
  2. Step 2: Convert to fraction form
    18,633.25/27,908.95 = 17,174.87/x
  3. Step 3: Cross multiply
    18,633.25x = 27,908.95 × 17,174.87
  4. Step 4: Simplify right side
    18,633.25x = 479,332,588.09
  5. Step 5: Solve for x
    x = 479,332,588.09/18,633.25
  6. Step 6: Final answer
    x = 25,724.58

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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.