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Finding the Fourth Proportional to 2,133.74, 3,197.84 and 1,092.87

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Solution

The fourth proportional to 2,133.74, 3,197.84 and 1,092.87 is: 1,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.74 : 3,197.84 = 1,092.87 : x
  2. Step 2: Convert to fraction form
    2,133.74/3,197.84 = 1,092.87/x
  3. Step 3: Cross multiply
    2,133.74x = 3,197.84 × 1,092.87
  4. Step 4: Simplify right side
    2,133.74x = 3,494,817.94
  5. Step 5: Solve for x
    x = 3,494,817.94/2,133.74
  6. Step 6: Final answer
    x = 1,637.88

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1.5x scale

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.