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Finding the Fourth Proportional to 1,994.76, 2,993.34 and 697.14

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Solution

The fourth proportional to 1,994.76, 2,993.34 and 697.14 is: 1,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.76 : 2,993.34 = 697.14 : x
  2. Step 2: Convert to fraction form
    1,994.76/2,993.34 = 697.14/x
  3. Step 3: Cross multiply
    1,994.76x = 2,993.34 × 697.14
  4. Step 4: Simplify right side
    1,994.76x = 2,086,777.05
  5. Step 5: Solve for x
    x = 2,086,777.05/1,994.76
  6. Step 6: Final answer
    x = 1,046.13

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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.