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Finding the Fourth Proportional to 61,048.62, 91,408.86 and 38,741.22

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Solution

The fourth proportional to 61,048.62, 91,408.86 and 38,741.22 is: 58,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,048.62 : 91,408.86 = 38,741.22 : x
  2. Step 2: Convert to fraction form
    61,048.62/91,408.86 = 38,741.22/x
  3. Step 3: Cross multiply
    61,048.62x = 91,408.86 × 38,741.22
  4. Step 4: Simplify right side
    61,048.62x = 3,541,290,755.21
  5. Step 5: Solve for x
    x = 3,541,290,755.21/61,048.62
  6. Step 6: Final answer
    x = 58,007.71

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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.