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Finding the Fourth Proportional to 2,092.97, 3,138.90 and 995.15

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Solution

The fourth proportional to 2,092.97, 3,138.90 and 995.15 is: 1,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,092.97 : 3,138.90 = 995.15 : x
  2. Step 2: Convert to fraction form
    2,092.97/3,138.90 = 995.15/x
  3. Step 3: Cross multiply
    2,092.97x = 3,138.90 × 995.15
  4. Step 4: Simplify right side
    2,092.97x = 3,123,660.64
  5. Step 5: Solve for x
    x = 3,123,660.64/2,092.97
  6. Step 6: Final answer
    x = 1,492.46

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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.