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Finding the Fourth Proportional to 17,890.26, 26,835.93 and 8,531.28

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Solution

The fourth proportional to 17,890.26, 26,835.93 and 8,531.28 is: 12,797.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,890.26 : 26,835.93 = 8,531.28 : x
  2. Step 2: Convert to fraction form
    17,890.26/26,835.93 = 8,531.28/x
  3. Step 3: Cross multiply
    17,890.26x = 26,835.93 × 8,531.28
  4. Step 4: Simplify right side
    17,890.26x = 228,944,832.89
  5. Step 5: Solve for x
    x = 228,944,832.89/17,890.26
  6. Step 6: Final answer
    x = 12,797.18

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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.