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Finding the Fourth Proportional to 18,335.28, 27,505.08 and 13,747.44

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Solution

The fourth proportional to 18,335.28, 27,505.08 and 13,747.44 is: 20,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.28 : 27,505.08 = 13,747.44 : x
  2. Step 2: Convert to fraction form
    18,335.28/27,505.08 = 13,747.44/x
  3. Step 3: Cross multiply
    18,335.28x = 27,505.08 × 13,747.44
  4. Step 4: Simplify right side
    18,335.28x = 378,124,437.00
  5. Step 5: Solve for x
    x = 378,124,437.00/18,335.28
  6. Step 6: Final answer
    x = 20,622.78

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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.