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Finding the Fourth Proportional to 30,174, 41,640.12 and 16,926

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Solution

The fourth proportional to 30,174, 41,640.12 and 16,926 is: 23,357.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,174 : 41,640.12 = 16,926 : x
  2. Step 2: Convert to fraction form
    30,174/41,640.12 = 16,926/x
  3. Step 3: Cross multiply
    30,174x = 41,640.12 × 16,926
  4. Step 4: Simplify right side
    30,174x = 704,800,671.12
  5. Step 5: Solve for x
    x = 704,800,671.12/30,174
  6. Step 6: Final answer
    x = 23,357.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.