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Finding the Fourth Proportional to 17,208.91, 25,807.89 and 11,697.67

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Solution

The fourth proportional to 17,208.91, 25,807.89 and 11,697.67 is: 17,542.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,208.91 : 25,807.89 = 11,697.67 : x
  2. Step 2: Convert to fraction form
    17,208.91/25,807.89 = 11,697.67/x
  3. Step 3: Cross multiply
    17,208.91x = 25,807.89 × 11,697.67
  4. Step 4: Simplify right side
    17,208.91x = 301,892,180.62
  5. Step 5: Solve for x
    x = 301,892,180.62/17,208.91
  6. Step 6: Final answer
    x = 17,542.78

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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.