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Finding the Fourth Proportional to 17,921.30, 26,872.68 and 8,052.14

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Solution

The fourth proportional to 17,921.30, 26,872.68 and 8,052.14 is: 12,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,921.30 : 26,872.68 = 8,052.14 : x
  2. Step 2: Convert to fraction form
    17,921.30/26,872.68 = 8,052.14/x
  3. Step 3: Cross multiply
    17,921.30x = 26,872.68 × 8,052.14
  4. Step 4: Simplify right side
    17,921.30x = 216,382,581.54
  5. Step 5: Solve for x
    x = 216,382,581.54/17,921.30
  6. Step 6: Final answer
    x = 12,074.04

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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.