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Finding the Fourth Proportional to 18,217.71, 27,326.91 and 5,738.15

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Solution

The fourth proportional to 18,217.71, 27,326.91 and 5,738.15 is: 8,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.71 : 27,326.91 = 5,738.15 : x
  2. Step 2: Convert to fraction form
    18,217.71/27,326.91 = 5,738.15/x
  3. Step 3: Cross multiply
    18,217.71x = 27,326.91 × 5,738.15
  4. Step 4: Simplify right side
    18,217.71x = 156,805,771.98
  5. Step 5: Solve for x
    x = 156,805,771.98/18,217.71
  6. Step 6: Final answer
    x = 8,607.33

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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.