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Finding the Fourth Proportional to 61,919.92, 85,448.74 and 33,625.80

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Solution

The fourth proportional to 61,919.92, 85,448.74 and 33,625.80 is: 46,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.92 : 85,448.74 = 33,625.80 : x
  2. Step 2: Convert to fraction form
    61,919.92/85,448.74 = 33,625.80/x
  3. Step 3: Cross multiply
    61,919.92x = 85,448.74 × 33,625.80
  4. Step 4: Simplify right side
    61,919.92x = 2,873,282,241.49
  5. Step 5: Solve for x
    x = 2,873,282,241.49/61,919.92
  6. Step 6: Final answer
    x = 46,403.20

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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.