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Finding the Fourth Proportional to 62,871.93, 86,764.91 and 34,578.36

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Solution

The fourth proportional to 62,871.93, 86,764.91 and 34,578.36 is: 47,719.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,871.93 : 86,764.91 = 34,578.36 : x
  2. Step 2: Convert to fraction form
    62,871.93/86,764.91 = 34,578.36/x
  3. Step 3: Cross multiply
    62,871.93x = 86,764.91 × 34,578.36
  4. Step 4: Simplify right side
    62,871.93x = 3,000,188,120.46
  5. Step 5: Solve for x
    x = 3,000,188,120.46/62,871.93
  6. Step 6: Final answer
    x = 47,719.04

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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.