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Finding the Fourth Proportional to 49,693.48, 74,553.18 and 18,529

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Solution

The fourth proportional to 49,693.48, 74,553.18 and 18,529 is: 27,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,693.48 : 74,553.18 = 18,529 : x
  2. Step 2: Convert to fraction form
    49,693.48/74,553.18 = 18,529/x
  3. Step 3: Cross multiply
    49,693.48x = 74,553.18 × 18,529
  4. Step 4: Simplify right side
    49,693.48x = 1,381,395,872.22
  5. Step 5: Solve for x
    x = 1,381,395,872.22/49,693.48
  6. Step 6: Final answer
    x = 27,798.33

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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.