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Finding the Fourth Proportional to 18,249.66, 27,374.49 and 4,398.66

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Solution

The fourth proportional to 18,249.66, 27,374.49 and 4,398.66 is: 6,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.66 : 27,374.49 = 4,398.66 : x
  2. Step 2: Convert to fraction form
    18,249.66/27,374.49 = 4,398.66/x
  3. Step 3: Cross multiply
    18,249.66x = 27,374.49 × 4,398.66
  4. Step 4: Simplify right side
    18,249.66x = 120,411,074.18
  5. Step 5: Solve for x
    x = 120,411,074.18/18,249.66
  6. Step 6: Final answer
    x = 6,597.99

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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.