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Finding the Fourth Proportional to 32,636.75, 48,976.99 and 20,958.17

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Solution

The fourth proportional to 32,636.75, 48,976.99 and 20,958.17 is: 31,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,636.75 : 48,976.99 = 20,958.17 : x
  2. Step 2: Convert to fraction form
    32,636.75/48,976.99 = 20,958.17/x
  3. Step 3: Cross multiply
    32,636.75x = 48,976.99 × 20,958.17
  4. Step 4: Simplify right side
    32,636.75x = 1,026,467,785.23
  5. Step 5: Solve for x
    x = 1,026,467,785.23/32,636.75
  6. Step 6: Final answer
    x = 31,451.29

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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.