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Finding the Fourth Proportional to 18,514.70, 27,772.13 and 4,474.71

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Solution

The fourth proportional to 18,514.70, 27,772.13 and 4,474.71 is: 6,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.70 : 27,772.13 = 4,474.71 : x
  2. Step 2: Convert to fraction form
    18,514.70/27,772.13 = 4,474.71/x
  3. Step 3: Cross multiply
    18,514.70x = 27,772.13 × 4,474.71
  4. Step 4: Simplify right side
    18,514.70x = 124,272,161.78
  5. Step 5: Solve for x
    x = 124,272,161.78/18,514.70
  6. Step 6: Final answer
    x = 6,712.08

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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.