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Finding the Fourth Proportional to 61,945.48, 85,485.54 and 33,651.64

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Solution

The fourth proportional to 61,945.48, 85,485.54 and 33,651.64 is: 46,439.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,945.48 : 85,485.54 = 33,651.64 : x
  2. Step 2: Convert to fraction form
    61,945.48/85,485.54 = 33,651.64/x
  3. Step 3: Cross multiply
    61,945.48x = 85,485.54 × 33,651.64
  4. Step 4: Simplify right side
    61,945.48x = 2,876,728,617.29
  5. Step 5: Solve for x
    x = 2,876,728,617.29/61,945.48
  6. Step 6: Final answer
    x = 46,439.69

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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.