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Finding the Fourth Proportional to 18,229.84, 27,344.79 and 5,082.58

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Solution

The fourth proportional to 18,229.84, 27,344.79 and 5,082.58 is: 7,623.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.84 : 27,344.79 = 5,082.58 : x
  2. Step 2: Convert to fraction form
    18,229.84/27,344.79 = 5,082.58/x
  3. Step 3: Cross multiply
    18,229.84x = 27,344.79 × 5,082.58
  4. Step 4: Simplify right side
    18,229.84x = 138,982,082.76
  5. Step 5: Solve for x
    x = 138,982,082.76/18,229.84
  6. Step 6: Final answer
    x = 7,623.88

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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.