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Finding the Fourth Proportional to 2,668.06, 3,993.88 and 2,274.40

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Solution

The fourth proportional to 2,668.06, 3,993.88 and 2,274.40 is: 3,404.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.06 : 3,993.88 = 2,274.40 : x
  2. Step 2: Convert to fraction form
    2,668.06/3,993.88 = 2,274.40/x
  3. Step 3: Cross multiply
    2,668.06x = 3,993.88 × 2,274.40
  4. Step 4: Simplify right side
    2,668.06x = 9,083,668.17
  5. Step 5: Solve for x
    x = 9,083,668.17/2,668.06
  6. Step 6: Final answer
    x = 3,404.60

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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.