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Finding the Fourth Proportional to 18,649.62, 27,974.19 and 5,502.09

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Solution

The fourth proportional to 18,649.62, 27,974.19 and 5,502.09 is: 8,253.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,649.62 : 27,974.19 = 5,502.09 : x
  2. Step 2: Convert to fraction form
    18,649.62/27,974.19 = 5,502.09/x
  3. Step 3: Cross multiply
    18,649.62x = 27,974.19 × 5,502.09
  4. Step 4: Simplify right side
    18,649.62x = 153,916,511.06
  5. Step 5: Solve for x
    x = 153,916,511.06/18,649.62
  6. Step 6: Final answer
    x = 8,253.06

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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.