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Finding the Fourth Proportional to 8,463.69, 11,668.86 and 6,471.09

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Solution

The fourth proportional to 8,463.69, 11,668.86 and 6,471.09 is: 8,921.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.69 : 11,668.86 = 6,471.09 : x
  2. Step 2: Convert to fraction form
    8,463.69/11,668.86 = 6,471.09/x
  3. Step 3: Cross multiply
    8,463.69x = 11,668.86 × 6,471.09
  4. Step 4: Simplify right side
    8,463.69x = 75,510,243.26
  5. Step 5: Solve for x
    x = 75,510,243.26/8,463.69
  6. Step 6: Final answer
    x = 8,921.67

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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.