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Finding the Fourth Proportional to 17,868.76, 26,768.28 and 8,495.44

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Solution

The fourth proportional to 17,868.76, 26,768.28 and 8,495.44 is: 12,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,868.76 : 26,768.28 = 8,495.44 : x
  2. Step 2: Convert to fraction form
    17,868.76/26,768.28 = 8,495.44/x
  3. Step 3: Cross multiply
    17,868.76x = 26,768.28 × 8,495.44
  4. Step 4: Simplify right side
    17,868.76x = 227,408,316.64
  5. Step 5: Solve for x
    x = 227,408,316.64/17,868.76
  6. Step 6: Final answer
    x = 12,726.59

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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.