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Finding the Fourth Proportional to 18,661.48, 27,992.25 and 5,523.08

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Solution

The fourth proportional to 18,661.48, 27,992.25 and 5,523.08 is: 8,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.48 : 27,992.25 = 5,523.08 : x
  2. Step 2: Convert to fraction form
    18,661.48/27,992.25 = 5,523.08/x
  3. Step 3: Cross multiply
    18,661.48x = 27,992.25 × 5,523.08
  4. Step 4: Simplify right side
    18,661.48x = 154,603,296.17
  5. Step 5: Solve for x
    x = 154,603,296.17/18,661.48
  6. Step 6: Final answer
    x = 8,284.62

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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.