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Finding the Fourth Proportional to 7,662.99, 11,502.56 and 6,791.10

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Solution

The fourth proportional to 7,662.99, 11,502.56 and 6,791.10 is: 10,193.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.99 : 11,502.56 = 6,791.10 : x
  2. Step 2: Convert to fraction form
    7,662.99/11,502.56 = 6,791.10/x
  3. Step 3: Cross multiply
    7,662.99x = 11,502.56 × 6,791.10
  4. Step 4: Simplify right side
    7,662.99x = 78,115,035.22
  5. Step 5: Solve for x
    x = 78,115,035.22/7,662.99
  6. Step 6: Final answer
    x = 10,193.81

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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.