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Finding the Fourth Proportional to 11,144.71, 16,716.90 and 2,711.29

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Solution

The fourth proportional to 11,144.71, 16,716.90 and 2,711.29 is: 4,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.71 : 16,716.90 = 2,711.29 : x
  2. Step 2: Convert to fraction form
    11,144.71/16,716.90 = 2,711.29/x
  3. Step 3: Cross multiply
    11,144.71x = 16,716.90 × 2,711.29
  4. Step 4: Simplify right side
    11,144.71x = 45,324,363.80
  5. Step 5: Solve for x
    x = 45,324,363.80/11,144.71
  6. Step 6: Final answer
    x = 4,066.89

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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.