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Finding the Fourth Proportional to 18,481.28, 27,723.72 and 17,484.80

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Solution

The fourth proportional to 18,481.28, 27,723.72 and 17,484.80 is: 26,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.28 : 27,723.72 = 17,484.80 : x
  2. Step 2: Convert to fraction form
    18,481.28/27,723.72 = 17,484.80/x
  3. Step 3: Cross multiply
    18,481.28x = 27,723.72 × 17,484.80
  4. Step 4: Simplify right side
    18,481.28x = 484,743,699.46
  5. Step 5: Solve for x
    x = 484,743,699.46/18,481.28
  6. Step 6: Final answer
    x = 26,228.90

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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.