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Finding the Fourth Proportional to 18,524.69, 27,789.76 and 5,375.35

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Solution

The fourth proportional to 18,524.69, 27,789.76 and 5,375.35 is: 8,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,524.69 : 27,789.76 = 5,375.35 : x
  2. Step 2: Convert to fraction form
    18,524.69/27,789.76 = 5,375.35/x
  3. Step 3: Cross multiply
    18,524.69x = 27,789.76 × 5,375.35
  4. Step 4: Simplify right side
    18,524.69x = 149,379,547.47
  5. Step 5: Solve for x
    x = 149,379,547.47/18,524.69
  6. Step 6: Final answer
    x = 8,063.81

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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.