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Finding the Fourth Proportional to 18,496.48, 27,753.81 and 11,474.68

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Solution

The fourth proportional to 18,496.48, 27,753.81 and 11,474.68 is: 17,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,496.48 : 27,753.81 = 11,474.68 : x
  2. Step 2: Convert to fraction form
    18,496.48/27,753.81 = 11,474.68/x
  3. Step 3: Cross multiply
    18,496.48x = 27,753.81 × 11,474.68
  4. Step 4: Simplify right side
    18,496.48x = 318,466,062.18
  5. Step 5: Solve for x
    x = 318,466,062.18/18,496.48
  6. Step 6: Final answer
    x = 17,217.66

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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.