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Finding the Fourth Proportional to 11,274.57, 16,892.42 and 7,472.88

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Solution

The fourth proportional to 11,274.57, 16,892.42 and 7,472.88 is: 11,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.57 : 16,892.42 = 7,472.88 : x
  2. Step 2: Convert to fraction form
    11,274.57/16,892.42 = 7,472.88/x
  3. Step 3: Cross multiply
    11,274.57x = 16,892.42 × 7,472.88
  4. Step 4: Simplify right side
    11,274.57x = 126,234,990.21
  5. Step 5: Solve for x
    x = 126,234,990.21/11,274.57
  6. Step 6: Final answer
    x = 11,196.44

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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.