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Finding the Fourth Proportional to 12,668.52, 18,974.22 and 6,099.63

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Solution

The fourth proportional to 12,668.52, 18,974.22 and 6,099.63 is: 9,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,668.52 : 18,974.22 = 6,099.63 : x
  2. Step 2: Convert to fraction form
    12,668.52/18,974.22 = 6,099.63/x
  3. Step 3: Cross multiply
    12,668.52x = 18,974.22 × 6,099.63
  4. Step 4: Simplify right side
    12,668.52x = 115,735,721.54
  5. Step 5: Solve for x
    x = 115,735,721.54/12,668.52
  6. Step 6: Final answer
    x = 9,135.69

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1.5x scale

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.