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Finding the Fourth Proportional to 45,093.29, 67,646.07 and 18,791.88

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Solution

The fourth proportional to 45,093.29, 67,646.07 and 18,791.88 is: 28,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,093.29 : 67,646.07 = 18,791.88 : x
  2. Step 2: Convert to fraction form
    45,093.29/67,646.07 = 18,791.88/x
  3. Step 3: Cross multiply
    45,093.29x = 67,646.07 × 18,791.88
  4. Step 4: Simplify right side
    45,093.29x = 1,271,196,576.24
  5. Step 5: Solve for x
    x = 1,271,196,576.24/45,093.29
  6. Step 6: Final answer
    x = 28,190.37

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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.