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Finding the Fourth Proportional to 18,074.75, 24,940.17 and 11,355.62

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Solution

The fourth proportional to 18,074.75, 24,940.17 and 11,355.62 is: 15,668.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,074.75 : 24,940.17 = 11,355.62 : x
  2. Step 2: Convert to fraction form
    18,074.75/24,940.17 = 11,355.62/x
  3. Step 3: Cross multiply
    18,074.75x = 24,940.17 × 11,355.62
  4. Step 4: Simplify right side
    18,074.75x = 283,211,093.26
  5. Step 5: Solve for x
    x = 283,211,093.26/18,074.75
  6. Step 6: Final answer
    x = 15,668.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.