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Finding the Fourth Proportional to 14,011.92, 20,995.20 and 10,711.44

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Solution

The fourth proportional to 14,011.92, 20,995.20 and 10,711.44 is: 16,049.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,011.92 : 20,995.20 = 10,711.44 : x
  2. Step 2: Convert to fraction form
    14,011.92/20,995.20 = 10,711.44/x
  3. Step 3: Cross multiply
    14,011.92x = 20,995.20 × 10,711.44
  4. Step 4: Simplify right side
    14,011.92x = 224,888,825.09
  5. Step 5: Solve for x
    x = 224,888,825.09/14,011.92
  6. Step 6: Final answer
    x = 16,049.82

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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.