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Finding the Fourth Proportional to 11,213.73, 16,839.27 and 7,006.73

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Solution

The fourth proportional to 11,213.73, 16,839.27 and 7,006.73 is: 10,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.73 : 16,839.27 = 7,006.73 : x
  2. Step 2: Convert to fraction form
    11,213.73/16,839.27 = 7,006.73/x
  3. Step 3: Cross multiply
    11,213.73x = 16,839.27 × 7,006.73
  4. Step 4: Simplify right side
    11,213.73x = 117,988,134.09
  5. Step 5: Solve for x
    x = 117,988,134.09/11,213.73
  6. Step 6: Final answer
    x = 10,521.76

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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.