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Finding the Fourth Proportional to 17,978.52, 26,950.36 and 6,876.66

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Solution

The fourth proportional to 17,978.52, 26,950.36 and 6,876.66 is: 10,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,978.52 : 26,950.36 = 6,876.66 : x
  2. Step 2: Convert to fraction form
    17,978.52/26,950.36 = 6,876.66/x
  3. Step 3: Cross multiply
    17,978.52x = 26,950.36 × 6,876.66
  4. Step 4: Simplify right side
    17,978.52x = 185,328,462.60
  5. Step 5: Solve for x
    x = 185,328,462.60/17,978.52
  6. Step 6: Final answer
    x = 10,308.33

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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.