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Finding the Fourth Proportional to 1,984.97, 2,977.44 and 1,168.44

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Solution

The fourth proportional to 1,984.97, 2,977.44 and 1,168.44 is: 1,752.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.97 : 2,977.44 = 1,168.44 : x
  2. Step 2: Convert to fraction form
    1,984.97/2,977.44 = 1,168.44/x
  3. Step 3: Cross multiply
    1,984.97x = 2,977.44 × 1,168.44
  4. Step 4: Simplify right side
    1,984.97x = 3,478,944.45
  5. Step 5: Solve for x
    x = 3,478,944.45/1,984.97
  6. Step 6: Final answer
    x = 1,752.64

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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.