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Finding the Fourth Proportional to 61,691.14, 85,133.82 and 33,396.84

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Solution

The fourth proportional to 61,691.14, 85,133.82 and 33,396.84 is: 46,087.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.14 : 85,133.82 = 33,396.84 : x
  2. Step 2: Convert to fraction form
    61,691.14/85,133.82 = 33,396.84/x
  3. Step 3: Cross multiply
    61,691.14x = 85,133.82 × 33,396.84
  4. Step 4: Simplify right side
    61,691.14x = 2,843,200,565.13
  5. Step 5: Solve for x
    x = 2,843,200,565.13/61,691.14
  6. Step 6: Final answer
    x = 46,087.66

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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.