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Finding the Fourth Proportional to 1,996.73, 2,990.73 and 1,646.13

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Solution

The fourth proportional to 1,996.73, 2,990.73 and 1,646.13 is: 2,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.73 : 2,990.73 = 1,646.13 : x
  2. Step 2: Convert to fraction form
    1,996.73/2,990.73 = 1,646.13/x
  3. Step 3: Cross multiply
    1,996.73x = 2,990.73 × 1,646.13
  4. Step 4: Simplify right side
    1,996.73x = 4,923,120.69
  5. Step 5: Solve for x
    x = 4,923,120.69/1,996.73
  6. Step 6: Final answer
    x = 2,465.59

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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.