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Finding the Fourth Proportional to 33,230.72, 45,858.22 and 18,123.10

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Solution

The fourth proportional to 33,230.72, 45,858.22 and 18,123.10 is: 25,009.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,230.72 : 45,858.22 = 18,123.10 : x
  2. Step 2: Convert to fraction form
    33,230.72/45,858.22 = 18,123.10/x
  3. Step 3: Cross multiply
    33,230.72x = 45,858.22 × 18,123.10
  4. Step 4: Simplify right side
    33,230.72x = 831,092,946.93
  5. Step 5: Solve for x
    x = 831,092,946.93/33,230.72
  6. Step 6: Final answer
    x = 25,009.78

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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.