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Finding the Fourth Proportional to 26,175, 36,121.50 and 15,003.48

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Solution

The fourth proportional to 26,175, 36,121.50 and 15,003.48 is: 20,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,175 : 36,121.50 = 15,003.48 : x
  2. Step 2: Convert to fraction form
    26,175/36,121.50 = 15,003.48/x
  3. Step 3: Cross multiply
    26,175x = 36,121.50 × 15,003.48
  4. Step 4: Simplify right side
    26,175x = 541,948,202.82
  5. Step 5: Solve for x
    x = 541,948,202.82/26,175
  6. Step 6: Final answer
    x = 20,704.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.