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Finding the Fourth Proportional to 17,889.23, 26,824.73 and 10,508.11

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Solution

The fourth proportional to 17,889.23, 26,824.73 and 10,508.11 is: 15,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.23 : 26,824.73 = 10,508.11 : x
  2. Step 2: Convert to fraction form
    17,889.23/26,824.73 = 10,508.11/x
  3. Step 3: Cross multiply
    17,889.23x = 26,824.73 × 10,508.11
  4. Step 4: Simplify right side
    17,889.23x = 281,877,213.56
  5. Step 5: Solve for x
    x = 281,877,213.56/17,889.23
  6. Step 6: Final answer
    x = 15,756.81

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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.