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Finding the Fourth Proportional to 61,858.86, 85,366.22 and 33,564.55

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Solution

The fourth proportional to 61,858.86, 85,366.22 and 33,564.55 is: 46,319.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,858.86 : 85,366.22 = 33,564.55 : x
  2. Step 2: Convert to fraction form
    61,858.86/85,366.22 = 33,564.55/x
  3. Step 3: Cross multiply
    61,858.86x = 85,366.22 × 33,564.55
  4. Step 4: Simplify right side
    61,858.86x = 2,865,278,759.50
  5. Step 5: Solve for x
    x = 2,865,278,759.50/61,858.86
  6. Step 6: Final answer
    x = 46,319.62

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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.