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Finding the Fourth Proportional to 56,939.26, 85,404.68 and 17,493.96

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Solution

The fourth proportional to 56,939.26, 85,404.68 and 17,493.96 is: 26,239.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,939.26 : 85,404.68 = 17,493.96 : x
  2. Step 2: Convert to fraction form
    56,939.26/85,404.68 = 17,493.96/x
  3. Step 3: Cross multiply
    56,939.26x = 85,404.68 × 17,493.96
  4. Step 4: Simplify right side
    56,939.26x = 1,494,066,055.73
  5. Step 5: Solve for x
    x = 1,494,066,055.73/56,939.26
  6. Step 6: Final answer
    x = 26,239.65

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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.