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Finding the Fourth Proportional to 61,609.26, 85,020.70 and 33,314.88

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Solution

The fourth proportional to 61,609.26, 85,020.70 and 33,314.88 is: 45,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,609.26 : 85,020.70 = 33,314.88 : x
  2. Step 2: Convert to fraction form
    61,609.26/85,020.70 = 33,314.88/x
  3. Step 3: Cross multiply
    61,609.26x = 85,020.70 × 33,314.88
  4. Step 4: Simplify right side
    61,609.26x = 2,832,454,418.02
  5. Step 5: Solve for x
    x = 2,832,454,418.02/61,609.26
  6. Step 6: Final answer
    x = 45,974.49

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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.