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Finding the Fourth Proportional to 61,310.35, 84,610.79 and 34,452.78

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Solution

The fourth proportional to 61,310.35, 84,610.79 and 34,452.78 is: 47,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,310.35 : 84,610.79 = 34,452.78 : x
  2. Step 2: Convert to fraction form
    61,310.35/84,610.79 = 34,452.78/x
  3. Step 3: Cross multiply
    61,310.35x = 84,610.79 × 34,452.78
  4. Step 4: Simplify right side
    61,310.35x = 2,915,076,338.18
  5. Step 5: Solve for x
    x = 2,915,076,338.18/61,310.35
  6. Step 6: Final answer
    x = 47,546.24

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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.