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Finding the Fourth Proportional to 18,593.52, 27,890.79 and 5,445.88

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Solution

The fourth proportional to 18,593.52, 27,890.79 and 5,445.88 is: 8,168.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,593.52 : 27,890.79 = 5,445.88 : x
  2. Step 2: Convert to fraction form
    18,593.52/27,890.79 = 5,445.88/x
  3. Step 3: Cross multiply
    18,593.52x = 27,890.79 × 5,445.88
  4. Step 4: Simplify right side
    18,593.52x = 151,889,805.30
  5. Step 5: Solve for x
    x = 151,889,805.30/18,593.52
  6. Step 6: Final answer
    x = 8,168.97

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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.