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Finding the Fourth Proportional to 18,610.32, 27,924.48 and 9,251.28

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Solution

The fourth proportional to 18,610.32, 27,924.48 and 9,251.28 is: 13,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.32 : 27,924.48 = 9,251.28 : x
  2. Step 2: Convert to fraction form
    18,610.32/27,924.48 = 9,251.28/x
  3. Step 3: Cross multiply
    18,610.32x = 27,924.48 × 9,251.28
  4. Step 4: Simplify right side
    18,610.32x = 258,337,183.33
  5. Step 5: Solve for x
    x = 258,337,183.33/18,610.32
  6. Step 6: Final answer
    x = 13,881.39

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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.