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Finding the Fourth Proportional to 1,996.02, 2,992.55 and 1,377.96

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Solution

The fourth proportional to 1,996.02, 2,992.55 and 1,377.96 is: 2,065.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.02 : 2,992.55 = 1,377.96 : x
  2. Step 2: Convert to fraction form
    1,996.02/2,992.55 = 1,377.96/x
  3. Step 3: Cross multiply
    1,996.02x = 2,992.55 × 1,377.96
  4. Step 4: Simplify right side
    1,996.02x = 4,123,612.92
  5. Step 5: Solve for x
    x = 4,123,612.92/1,996.02
  6. Step 6: Final answer
    x = 2,065.92

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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.