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Finding the Fourth Proportional to 6,668.31, 9,204.05 and 4,149

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Solution

The fourth proportional to 6,668.31, 9,204.05 and 4,149 is: 5,726.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.31 : 9,204.05 = 4,149 : x
  2. Step 2: Convert to fraction form
    6,668.31/9,204.05 = 4,149/x
  3. Step 3: Cross multiply
    6,668.31x = 9,204.05 × 4,149
  4. Step 4: Simplify right side
    6,668.31x = 38,187,613.82
  5. Step 5: Solve for x
    x = 38,187,613.82/6,668.31
  6. Step 6: Final answer
    x = 5,726.73

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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.