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Finding the Fourth Proportional to 37,954.38, 52,376.85 and 21,187.38

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Solution

The fourth proportional to 37,954.38, 52,376.85 and 21,187.38 is: 29,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,954.38 : 52,376.85 = 21,187.38 : x
  2. Step 2: Convert to fraction form
    37,954.38/52,376.85 = 21,187.38/x
  3. Step 3: Cross multiply
    37,954.38x = 52,376.85 × 21,187.38
  4. Step 4: Simplify right side
    37,954.38x = 1,109,728,224.15
  5. Step 5: Solve for x
    x = 1,109,728,224.15/37,954.38
  6. Step 6: Final answer
    x = 29,238.48

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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.