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Finding the Fourth Proportional to 8,062.71, 11,137.75 and 7,668.60

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Solution

The fourth proportional to 8,062.71, 11,137.75 and 7,668.60 is: 10,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.71 : 11,137.75 = 7,668.60 : x
  2. Step 2: Convert to fraction form
    8,062.71/11,137.75 = 7,668.60/x
  3. Step 3: Cross multiply
    8,062.71x = 11,137.75 × 7,668.60
  4. Step 4: Simplify right side
    8,062.71x = 85,410,949.65
  5. Step 5: Solve for x
    x = 85,410,949.65/8,062.71
  6. Step 6: Final answer
    x = 10,593.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.