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Finding the Fourth Proportional to 18,296.64, 27,446.57 and 5,149.12

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Solution

The fourth proportional to 18,296.64, 27,446.57 and 5,149.12 is: 7,724.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,296.64 : 27,446.57 = 5,149.12 : x
  2. Step 2: Convert to fraction form
    18,296.64/27,446.57 = 5,149.12/x
  3. Step 3: Cross multiply
    18,296.64x = 27,446.57 × 5,149.12
  4. Step 4: Simplify right side
    18,296.64x = 141,325,682.52
  5. Step 5: Solve for x
    x = 141,325,682.52/18,296.64
  6. Step 6: Final answer
    x = 7,724.13

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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.