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Finding the Fourth Proportional to 6,668.56, 10,006.49 and 5,011.91

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Solution

The fourth proportional to 6,668.56, 10,006.49 and 5,011.91 is: 7,520.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.56 : 10,006.49 = 5,011.91 : x
  2. Step 2: Convert to fraction form
    6,668.56/10,006.49 = 5,011.91/x
  3. Step 3: Cross multiply
    6,668.56x = 10,006.49 × 5,011.91
  4. Step 4: Simplify right side
    6,668.56x = 50,151,627.30
  5. Step 5: Solve for x
    x = 50,151,627.30/6,668.56
  6. Step 6: Final answer
    x = 7,520.61

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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.