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Finding the Fourth Proportional to 1,998.84, 2,759.64 and 1,473.96

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Solution

The fourth proportional to 1,998.84, 2,759.64 and 1,473.96 is: 2,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.84 : 2,759.64 = 1,473.96 : x
  2. Step 2: Convert to fraction form
    1,998.84/2,759.64 = 1,473.96/x
  3. Step 3: Cross multiply
    1,998.84x = 2,759.64 × 1,473.96
  4. Step 4: Simplify right side
    1,998.84x = 4,067,598.97
  5. Step 5: Solve for x
    x = 4,067,598.97/1,998.84
  6. Step 6: Final answer
    x = 2,034.98

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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.