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Finding the Fourth Proportional to 1,968.26, 2,716.08 and 1,084.01

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Solution

The fourth proportional to 1,968.26, 2,716.08 and 1,084.01 is: 1,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.26 : 2,716.08 = 1,084.01 : x
  2. Step 2: Convert to fraction form
    1,968.26/2,716.08 = 1,084.01/x
  3. Step 3: Cross multiply
    1,968.26x = 2,716.08 × 1,084.01
  4. Step 4: Simplify right side
    1,968.26x = 2,944,257.88
  5. Step 5: Solve for x
    x = 2,944,257.88/1,968.26
  6. Step 6: Final answer
    x = 1,495.87

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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.