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Finding the Fourth Proportional to 61,896.34, 92,889.06 and 47,891.44

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Solution

The fourth proportional to 61,896.34, 92,889.06 and 47,891.44 is: 71,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,896.34 : 92,889.06 = 47,891.44 : x
  2. Step 2: Convert to fraction form
    61,896.34/92,889.06 = 47,891.44/x
  3. Step 3: Cross multiply
    61,896.34x = 92,889.06 × 47,891.44
  4. Step 4: Simplify right side
    61,896.34x = 4,448,590,843.65
  5. Step 5: Solve for x
    x = 4,448,590,843.65/61,896.34
  6. Step 6: Final answer
    x = 71,871.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.