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Finding the Fourth Proportional to 4,160.88, 5,742 and 2,668.32

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Solution

The fourth proportional to 4,160.88, 5,742 and 2,668.32 is: 3,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.88 : 5,742 = 2,668.32 : x
  2. Step 2: Convert to fraction form
    4,160.88/5,742 = 2,668.32/x
  3. Step 3: Cross multiply
    4,160.88x = 5,742 × 2,668.32
  4. Step 4: Simplify right side
    4,160.88x = 15,321,493.44
  5. Step 5: Solve for x
    x = 15,321,493.44/4,160.88
  6. Step 6: Final answer
    x = 3,682.27

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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.