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Finding the Fourth Proportional to 61,902.66, 85,424.36 and 33,608.36

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Solution

The fourth proportional to 61,902.66, 85,424.36 and 33,608.36 is: 46,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,902.66 : 85,424.36 = 33,608.36 : x
  2. Step 2: Convert to fraction form
    61,902.66/85,424.36 = 33,608.36/x
  3. Step 3: Cross multiply
    61,902.66x = 85,424.36 × 33,608.36
  4. Step 4: Simplify right side
    61,902.66x = 2,870,972,643.65
  5. Step 5: Solve for x
    x = 2,870,972,643.65/61,902.66
  6. Step 6: Final answer
    x = 46,378.83

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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.