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Finding the Fourth Proportional to 17,149.20, 25,723.80 and 4,837.20

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Solution

The fourth proportional to 17,149.20, 25,723.80 and 4,837.20 is: 7,255.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,149.20 : 25,723.80 = 4,837.20 : x
  2. Step 2: Convert to fraction form
    17,149.20/25,723.80 = 4,837.20/x
  3. Step 3: Cross multiply
    17,149.20x = 25,723.80 × 4,837.20
  4. Step 4: Simplify right side
    17,149.20x = 124,431,165.36
  5. Step 5: Solve for x
    x = 124,431,165.36/17,149.20
  6. Step 6: Final answer
    x = 7,255.80

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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.