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Finding the Fourth Proportional to 17,512.70, 26,247.09 and 8,750.12

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Solution

The fourth proportional to 17,512.70, 26,247.09 and 8,750.12 is: 13,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,512.70 : 26,247.09 = 8,750.12 : x
  2. Step 2: Convert to fraction form
    17,512.70/26,247.09 = 8,750.12/x
  3. Step 3: Cross multiply
    17,512.70x = 26,247.09 × 8,750.12
  4. Step 4: Simplify right side
    17,512.70x = 229,665,187.15
  5. Step 5: Solve for x
    x = 229,665,187.15/17,512.70
  6. Step 6: Final answer
    x = 13,114.21

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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.