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Finding the Fourth Proportional to 61,878.65, 85,392.62 and 33,584.33

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Solution

The fourth proportional to 61,878.65, 85,392.62 and 33,584.33 is: 46,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,878.65 : 85,392.62 = 33,584.33 : x
  2. Step 2: Convert to fraction form
    61,878.65/85,392.62 = 33,584.33/x
  3. Step 3: Cross multiply
    61,878.65x = 85,392.62 × 33,584.33
  4. Step 4: Simplify right side
    61,878.65x = 2,867,853,975.20
  5. Step 5: Solve for x
    x = 2,867,853,975.20/61,878.65
  6. Step 6: Final answer
    x = 46,346.42

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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.