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Finding the Fourth Proportional to 61,342.49, 84,642.09 and 34,481.27

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Solution

The fourth proportional to 61,342.49, 84,642.09 and 34,481.27 is: 47,578.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,342.49 : 84,642.09 = 34,481.27 : x
  2. Step 2: Convert to fraction form
    61,342.49/84,642.09 = 34,481.27/x
  3. Step 3: Cross multiply
    61,342.49x = 84,642.09 × 34,481.27
  4. Step 4: Simplify right side
    61,342.49x = 2,918,566,758.65
  5. Step 5: Solve for x
    x = 2,918,566,758.65/61,342.49
  6. Step 6: Final answer
    x = 47,578.22

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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.