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Finding the Fourth Proportional to 18,481.84, 27,771.36 and 9,723.04

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Solution

The fourth proportional to 18,481.84, 27,771.36 and 9,723.04 is: 14,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.84 : 27,771.36 = 9,723.04 : x
  2. Step 2: Convert to fraction form
    18,481.84/27,771.36 = 9,723.04/x
  3. Step 3: Cross multiply
    18,481.84x = 27,771.36 × 9,723.04
  4. Step 4: Simplify right side
    18,481.84x = 270,022,044.13
  5. Step 5: Solve for x
    x = 270,022,044.13/18,481.84
  6. Step 6: Final answer
    x = 14,610.13

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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.