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Finding the Fourth Proportional to 17,540.55, 24,213.55 and 11,891.68

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Solution

The fourth proportional to 17,540.55, 24,213.55 and 11,891.68 is: 16,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,540.55 : 24,213.55 = 11,891.68 : x
  2. Step 2: Convert to fraction form
    17,540.55/24,213.55 = 11,891.68/x
  3. Step 3: Cross multiply
    17,540.55x = 24,213.55 × 11,891.68
  4. Step 4: Simplify right side
    17,540.55x = 287,939,892.56
  5. Step 5: Solve for x
    x = 287,939,892.56/17,540.55
  6. Step 6: Final answer
    x = 16,415.67

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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.