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Finding the Fourth Proportional to 18,590.11, 27,877.86 and 7,494.73

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Solution

The fourth proportional to 18,590.11, 27,877.86 and 7,494.73 is: 11,239.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.11 : 27,877.86 = 7,494.73 : x
  2. Step 2: Convert to fraction form
    18,590.11/27,877.86 = 7,494.73/x
  3. Step 3: Cross multiply
    18,590.11x = 27,877.86 × 7,494.73
  4. Step 4: Simplify right side
    18,590.11x = 208,936,963.98
  5. Step 5: Solve for x
    x = 208,936,963.98/18,590.11
  6. Step 6: Final answer
    x = 11,239.15

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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.