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Finding the Fourth Proportional to 2,170.99, 2,996.11 and 2,092.57

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Solution

The fourth proportional to 2,170.99, 2,996.11 and 2,092.57 is: 2,887.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.99 : 2,996.11 = 2,092.57 : x
  2. Step 2: Convert to fraction form
    2,170.99/2,996.11 = 2,092.57/x
  3. Step 3: Cross multiply
    2,170.99x = 2,996.11 × 2,092.57
  4. Step 4: Simplify right side
    2,170.99x = 6,269,565.03
  5. Step 5: Solve for x
    x = 6,269,565.03/2,170.99
  6. Step 6: Final answer
    x = 2,887.88

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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.