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Finding the Fourth Proportional to 3,664.97, 5,064.36 and 2,668.51

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Solution

The fourth proportional to 3,664.97, 5,064.36 and 2,668.51 is: 3,687.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.97 : 5,064.36 = 2,668.51 : x
  2. Step 2: Convert to fraction form
    3,664.97/5,064.36 = 2,668.51/x
  3. Step 3: Cross multiply
    3,664.97x = 5,064.36 × 2,668.51
  4. Step 4: Simplify right side
    3,664.97x = 13,514,281.96
  5. Step 5: Solve for x
    x = 13,514,281.96/3,664.97
  6. Step 6: Final answer
    x = 3,687.42

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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.