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Finding the Fourth Proportional to 17,247.94, 25,878.15 and 8,489.00

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Solution

The fourth proportional to 17,247.94, 25,878.15 and 8,489.00 is: 12,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,247.94 : 25,878.15 = 8,489.00 : x
  2. Step 2: Convert to fraction form
    17,247.94/25,878.15 = 8,489.00/x
  3. Step 3: Cross multiply
    17,247.94x = 25,878.15 × 8,489.00
  4. Step 4: Simplify right side
    17,247.94x = 219,679,680.05
  5. Step 5: Solve for x
    x = 219,679,680.05/17,247.94
  6. Step 6: Final answer
    x = 12,736.58

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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.