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Finding the Fourth Proportional to 61,879.59, 85,391.55 and 33,584.67

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Solution

The fourth proportional to 61,879.59, 85,391.55 and 33,584.67 is: 46,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,879.59 : 85,391.55 = 33,584.67 : x
  2. Step 2: Convert to fraction form
    61,879.59/85,391.55 = 33,584.67/x
  3. Step 3: Cross multiply
    61,879.59x = 85,391.55 × 33,584.67
  4. Step 4: Simplify right side
    61,879.59x = 2,867,847,027.54
  5. Step 5: Solve for x
    x = 2,867,847,027.54/61,879.59
  6. Step 6: Final answer
    x = 46,345.60

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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.