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Finding the Fourth Proportional to 17,871.88, 26,806.66 and 7,339.17

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Solution

The fourth proportional to 17,871.88, 26,806.66 and 7,339.17 is: 11,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.88 : 26,806.66 = 7,339.17 : x
  2. Step 2: Convert to fraction form
    17,871.88/26,806.66 = 7,339.17/x
  3. Step 3: Cross multiply
    17,871.88x = 26,806.66 × 7,339.17
  4. Step 4: Simplify right side
    17,871.88x = 196,738,634.87
  5. Step 5: Solve for x
    x = 196,738,634.87/17,871.88
  6. Step 6: Final answer
    x = 11,008.28

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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.