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Finding the Fourth Proportional to 18,383.52, 27,576.46 and 7,847.64

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Solution

The fourth proportional to 18,383.52, 27,576.46 and 7,847.64 is: 11,771.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,383.52 : 27,576.46 = 7,847.64 : x
  2. Step 2: Convert to fraction form
    18,383.52/27,576.46 = 7,847.64/x
  3. Step 3: Cross multiply
    18,383.52x = 27,576.46 × 7,847.64
  4. Step 4: Simplify right side
    18,383.52x = 216,410,130.55
  5. Step 5: Solve for x
    x = 216,410,130.55/18,383.52
  6. Step 6: Final answer
    x = 11,771.96

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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.