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Finding the Fourth Proportional to 18,563.88, 27,845.40 and 4,523.76

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Solution

The fourth proportional to 18,563.88, 27,845.40 and 4,523.76 is: 6,785.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.88 : 27,845.40 = 4,523.76 : x
  2. Step 2: Convert to fraction form
    18,563.88/27,845.40 = 4,523.76/x
  3. Step 3: Cross multiply
    18,563.88x = 27,845.40 × 4,523.76
  4. Step 4: Simplify right side
    18,563.88x = 125,965,906.70
  5. Step 5: Solve for x
    x = 125,965,906.70/18,563.88
  6. Step 6: Final answer
    x = 6,785.54

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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.