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Finding the Fourth Proportional to 62,965.68, 86,889.24 and 36,109.32

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Solution

The fourth proportional to 62,965.68, 86,889.24 and 36,109.32 is: 49,828.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,965.68 : 86,889.24 = 36,109.32 : x
  2. Step 2: Convert to fraction form
    62,965.68/86,889.24 = 36,109.32/x
  3. Step 3: Cross multiply
    62,965.68x = 86,889.24 × 36,109.32
  4. Step 4: Simplify right side
    62,965.68x = 3,137,511,371.72
  5. Step 5: Solve for x
    x = 3,137,511,371.72/62,965.68
  6. Step 6: Final answer
    x = 49,828.91

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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.