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Finding the Fourth Proportional to 32,645.75, 48,990.51 and 20,967.17

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Solution

The fourth proportional to 32,645.75, 48,990.51 and 20,967.17 is: 31,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,645.75 : 48,990.51 = 20,967.17 : x
  2. Step 2: Convert to fraction form
    32,645.75/48,990.51 = 20,967.17/x
  3. Step 3: Cross multiply
    32,645.75x = 48,990.51 × 20,967.17
  4. Step 4: Simplify right side
    32,645.75x = 1,027,192,106.60
  5. Step 5: Solve for x
    x = 1,027,192,106.60/32,645.75
  6. Step 6: Final answer
    x = 31,464.81

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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.