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Finding the Fourth Proportional to 33,138.96, 45,731.02 and 18,031.66

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Solution

The fourth proportional to 33,138.96, 45,731.02 and 18,031.66 is: 24,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,138.96 : 45,731.02 = 18,031.66 : x
  2. Step 2: Convert to fraction form
    33,138.96/45,731.02 = 18,031.66/x
  3. Step 3: Cross multiply
    33,138.96x = 45,731.02 × 18,031.66
  4. Step 4: Simplify right side
    33,138.96x = 824,606,207.44
  5. Step 5: Solve for x
    x = 824,606,207.44/33,138.96
  6. Step 6: Final answer
    x = 24,883.29

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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.