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Finding the Fourth Proportional to 61,942.40, 85,480.08 and 33,647.84

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Solution

The fourth proportional to 61,942.40, 85,480.08 and 33,647.84 is: 46,433.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,942.40 : 85,480.08 = 33,647.84 : x
  2. Step 2: Convert to fraction form
    61,942.40/85,480.08 = 33,647.84/x
  3. Step 3: Cross multiply
    61,942.40x = 85,480.08 × 33,647.84
  4. Step 4: Simplify right side
    61,942.40x = 2,876,220,055.03
  5. Step 5: Solve for x
    x = 2,876,220,055.03/61,942.40
  6. Step 6: Final answer
    x = 46,433.78

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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.