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Finding the Fourth Proportional to 18,164.25, 27,255.65 and 7,498.49

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Solution

The fourth proportional to 18,164.25, 27,255.65 and 7,498.49 is: 11,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,164.25 : 27,255.65 = 7,498.49 : x
  2. Step 2: Convert to fraction form
    18,164.25/27,255.65 = 7,498.49/x
  3. Step 3: Cross multiply
    18,164.25x = 27,255.65 × 7,498.49
  4. Step 4: Simplify right side
    18,164.25x = 204,376,045.20
  5. Step 5: Solve for x
    x = 204,376,045.20/18,164.25
  6. Step 6: Final answer
    x = 11,251.55

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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.