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Finding the Fourth Proportional to 17,375.26, 26,064.10 and 6,987

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Solution

The fourth proportional to 17,375.26, 26,064.10 and 6,987 is: 10,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,375.26 : 26,064.10 = 6,987 : x
  2. Step 2: Convert to fraction form
    17,375.26/26,064.10 = 6,987/x
  3. Step 3: Cross multiply
    17,375.26x = 26,064.10 × 6,987
  4. Step 4: Simplify right side
    17,375.26x = 182,109,866.70
  5. Step 5: Solve for x
    x = 182,109,866.70/17,375.26
  6. Step 6: Final answer
    x = 10,480.99

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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.