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Finding the Fourth Proportional to 18,566.82, 27,854.28 and 7,473.87

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Solution

The fourth proportional to 18,566.82, 27,854.28 and 7,473.87 is: 11,212.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,566.82 : 27,854.28 = 7,473.87 : x
  2. Step 2: Convert to fraction form
    18,566.82/27,854.28 = 7,473.87/x
  3. Step 3: Cross multiply
    18,566.82x = 27,854.28 × 7,473.87
  4. Step 4: Simplify right side
    18,566.82x = 208,179,267.66
  5. Step 5: Solve for x
    x = 208,179,267.66/18,566.82
  6. Step 6: Final answer
    x = 11,212.44

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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.