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Finding the Fourth Proportional to 18,576.27, 27,867.13 and 8,716.55

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Solution

The fourth proportional to 18,576.27, 27,867.13 and 8,716.55 is: 13,076.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576.27 : 27,867.13 = 8,716.55 : x
  2. Step 2: Convert to fraction form
    18,576.27/27,867.13 = 8,716.55/x
  3. Step 3: Cross multiply
    18,576.27x = 27,867.13 × 8,716.55
  4. Step 4: Simplify right side
    18,576.27x = 242,905,070.87
  5. Step 5: Solve for x
    x = 242,905,070.87/18,576.27
  6. Step 6: Final answer
    x = 13,076.09

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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.