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Finding the Fourth Proportional to 18,322.62, 27,481.69 and 7,796.87

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Solution

The fourth proportional to 18,322.62, 27,481.69 and 7,796.87 is: 11,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.62 : 27,481.69 = 7,796.87 : x
  2. Step 2: Convert to fraction form
    18,322.62/27,481.69 = 7,796.87/x
  3. Step 3: Cross multiply
    18,322.62x = 27,481.69 × 7,796.87
  4. Step 4: Simplify right side
    18,322.62x = 214,271,164.31
  5. Step 5: Solve for x
    x = 214,271,164.31/18,322.62
  6. Step 6: Final answer
    x = 11,694.35

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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.