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Finding the Fourth Proportional to 17,862.35, 26,786.66 and 8,495.15

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Solution

The fourth proportional to 17,862.35, 26,786.66 and 8,495.15 is: 12,739.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,862.35 : 26,786.66 = 8,495.15 : x
  2. Step 2: Convert to fraction form
    17,862.35/26,786.66 = 8,495.15/x
  3. Step 3: Cross multiply
    17,862.35x = 26,786.66 × 8,495.15
  4. Step 4: Simplify right side
    17,862.35x = 227,556,694.70
  5. Step 5: Solve for x
    x = 227,556,694.70/17,862.35
  6. Step 6: Final answer
    x = 12,739.46

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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.