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Finding the Fourth Proportional to 17,889.36, 26,811.36 and 10,102.56

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Solution

The fourth proportional to 17,889.36, 26,811.36 and 10,102.56 is: 15,141.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,889.36 : 26,811.36 = 10,102.56 : x
  2. Step 2: Convert to fraction form
    17,889.36/26,811.36 = 10,102.56/x
  3. Step 3: Cross multiply
    17,889.36x = 26,811.36 × 10,102.56
  4. Step 4: Simplify right side
    17,889.36x = 270,863,373.08
  5. Step 5: Solve for x
    x = 270,863,373.08/17,889.36
  6. Step 6: Final answer
    x = 15,141.03

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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.