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Finding the Fourth Proportional to 17,882.56, 26,813.45 and 11,966.21

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Solution

The fourth proportional to 17,882.56, 26,813.45 and 11,966.21 is: 17,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,882.56 : 26,813.45 = 11,966.21 : x
  2. Step 2: Convert to fraction form
    17,882.56/26,813.45 = 11,966.21/x
  3. Step 3: Cross multiply
    17,882.56x = 26,813.45 × 11,966.21
  4. Step 4: Simplify right side
    17,882.56x = 320,855,313.69
  5. Step 5: Solve for x
    x = 320,855,313.69/17,882.56
  6. Step 6: Final answer
    x = 17,942.36

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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.