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Finding the Fourth Proportional to 18,490.44, 27,737.04 and 5,342.90

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Solution

The fourth proportional to 18,490.44, 27,737.04 and 5,342.90 is: 8,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.44 : 27,737.04 = 5,342.90 : x
  2. Step 2: Convert to fraction form
    18,490.44/27,737.04 = 5,342.90/x
  3. Step 3: Cross multiply
    18,490.44x = 27,737.04 × 5,342.90
  4. Step 4: Simplify right side
    18,490.44x = 148,196,231.02
  5. Step 5: Solve for x
    x = 148,196,231.02/18,490.44
  6. Step 6: Final answer
    x = 8,014.75

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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.