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Finding the Fourth Proportional to 18,003.15, 27,003.74 and 5,523.17

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Solution

The fourth proportional to 18,003.15, 27,003.74 and 5,523.17 is: 8,284.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.15 : 27,003.74 = 5,523.17 : x
  2. Step 2: Convert to fraction form
    18,003.15/27,003.74 = 5,523.17/x
  3. Step 3: Cross multiply
    18,003.15x = 27,003.74 × 5,523.17
  4. Step 4: Simplify right side
    18,003.15x = 149,146,084.02
  5. Step 5: Solve for x
    x = 149,146,084.02/18,003.15
  6. Step 6: Final answer
    x = 8,284.44

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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.