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Finding the Fourth Proportional to 2,031.66, 3,044.97 and 731.70

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Solution

The fourth proportional to 2,031.66, 3,044.97 and 731.70 is: 1,096.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.66 : 3,044.97 = 731.70 : x
  2. Step 2: Convert to fraction form
    2,031.66/3,044.97 = 731.70/x
  3. Step 3: Cross multiply
    2,031.66x = 3,044.97 × 731.70
  4. Step 4: Simplify right side
    2,031.66x = 2,228,004.55
  5. Step 5: Solve for x
    x = 2,228,004.55/2,031.66
  6. Step 6: Final answer
    x = 1,096.64

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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.