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Finding the Fourth Proportional to 17,907.43, 26,861.17 and 6,811.51

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Solution

The fourth proportional to 17,907.43, 26,861.17 and 6,811.51 is: 10,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,907.43 : 26,861.17 = 6,811.51 : x
  2. Step 2: Convert to fraction form
    17,907.43/26,861.17 = 6,811.51/x
  3. Step 3: Cross multiply
    17,907.43x = 26,861.17 × 6,811.51
  4. Step 4: Simplify right side
    17,907.43x = 182,965,128.07
  5. Step 5: Solve for x
    x = 182,965,128.07/17,907.43
  6. Step 6: Final answer
    x = 10,217.27

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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.