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Finding the Fourth Proportional to 18,374.11, 27,561.31 and 5,894.15

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Solution

The fourth proportional to 18,374.11, 27,561.31 and 5,894.15 is: 8,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.11 : 27,561.31 = 5,894.15 : x
  2. Step 2: Convert to fraction form
    18,374.11/27,561.31 = 5,894.15/x
  3. Step 3: Cross multiply
    18,374.11x = 27,561.31 × 5,894.15
  4. Step 4: Simplify right side
    18,374.11x = 162,450,530.98
  5. Step 5: Solve for x
    x = 162,450,530.98/18,374.11
  6. Step 6: Final answer
    x = 8,841.27

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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.