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Finding the Fourth Proportional to 61,912.41, 85,439.48 and 33,618.11

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Solution

The fourth proportional to 61,912.41, 85,439.48 and 33,618.11 is: 46,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,912.41 : 85,439.48 = 33,618.11 : x
  2. Step 2: Convert to fraction form
    61,912.41/85,439.48 = 33,618.11/x
  3. Step 3: Cross multiply
    61,912.41x = 85,439.48 × 33,618.11
  4. Step 4: Simplify right side
    61,912.41x = 2,872,313,241.69
  5. Step 5: Solve for x
    x = 2,872,313,241.69/61,912.41
  6. Step 6: Final answer
    x = 46,393.17

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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.