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Finding the Fourth Proportional to 33,191.21, 45,803.85 and 18,287.21

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Solution

The fourth proportional to 33,191.21, 45,803.85 and 18,287.21 is: 25,236.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,191.21 : 45,803.85 = 18,287.21 : x
  2. Step 2: Convert to fraction form
    33,191.21/45,803.85 = 18,287.21/x
  3. Step 3: Cross multiply
    33,191.21x = 45,803.85 × 18,287.21
  4. Step 4: Simplify right side
    33,191.21x = 837,624,623.76
  5. Step 5: Solve for x
    x = 837,624,623.76/33,191.21
  6. Step 6: Final answer
    x = 25,236.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.