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Finding the Fourth Proportional to 57,375.90, 86,063.93 and 17,933.22

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Solution

The fourth proportional to 57,375.90, 86,063.93 and 17,933.22 is: 26,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,375.90 : 86,063.93 = 17,933.22 : x
  2. Step 2: Convert to fraction form
    57,375.90/86,063.93 = 17,933.22/x
  3. Step 3: Cross multiply
    57,375.90x = 86,063.93 × 17,933.22
  4. Step 4: Simplify right side
    57,375.90x = 1,543,403,301.09
  5. Step 5: Solve for x
    x = 1,543,403,301.09/57,375.90
  6. Step 6: Final answer
    x = 26,899.85

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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.