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Finding the Fourth Proportional to 61,965.88, 85,512.72 and 33,671.68

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Solution

The fourth proportional to 61,965.88, 85,512.72 and 33,671.68 is: 46,466.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,965.88 : 85,512.72 = 33,671.68 : x
  2. Step 2: Convert to fraction form
    61,965.88/85,512.72 = 33,671.68/x
  3. Step 3: Cross multiply
    61,965.88x = 85,512.72 × 33,671.68
  4. Step 4: Simplify right side
    61,965.88x = 2,879,356,943.77
  5. Step 5: Solve for x
    x = 2,879,356,943.77/61,965.88
  6. Step 6: Final answer
    x = 46,466.81

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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.