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Finding the Fourth Proportional to 12,327, 18,489.14 and 3,093

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Solution

The fourth proportional to 12,327, 18,489.14 and 3,093 is: 4,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,327 : 18,489.14 = 3,093 : x
  2. Step 2: Convert to fraction form
    12,327/18,489.14 = 3,093/x
  3. Step 3: Cross multiply
    12,327x = 18,489.14 × 3,093
  4. Step 4: Simplify right side
    12,327x = 57,186,910.02
  5. Step 5: Solve for x
    x = 57,186,910.02/12,327
  6. Step 6: Final answer
    x = 4,639.16

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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.