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Finding the Fourth Proportional to 32,889.87, 45,388.52 and 18,742.41

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Solution

The fourth proportional to 32,889.87, 45,388.52 and 18,742.41 is: 25,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,889.87 : 45,388.52 = 18,742.41 : x
  2. Step 2: Convert to fraction form
    32,889.87/45,388.52 = 18,742.41/x
  3. Step 3: Cross multiply
    32,889.87x = 45,388.52 × 18,742.41
  4. Step 4: Simplify right side
    32,889.87x = 850,690,251.13
  5. Step 5: Solve for x
    x = 850,690,251.13/32,889.87
  6. Step 6: Final answer
    x = 25,864.81

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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.