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Finding the Fourth Proportional to 18,533.25, 27,799.88 and 8,145.27

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Solution

The fourth proportional to 18,533.25, 27,799.88 and 8,145.27 is: 12,217.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,533.25 : 27,799.88 = 8,145.27 : x
  2. Step 2: Convert to fraction form
    18,533.25/27,799.88 = 8,145.27/x
  3. Step 3: Cross multiply
    18,533.25x = 27,799.88 × 8,145.27
  4. Step 4: Simplify right side
    18,533.25x = 226,437,487.84
  5. Step 5: Solve for x
    x = 226,437,487.84/18,533.25
  6. Step 6: Final answer
    x = 12,217.91

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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.