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Finding the Fourth Proportional to 2,735.97, 4,104.62 and 788.16

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Solution

The fourth proportional to 2,735.97, 4,104.62 and 788.16 is: 1,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,735.97 : 4,104.62 = 788.16 : x
  2. Step 2: Convert to fraction form
    2,735.97/4,104.62 = 788.16/x
  3. Step 3: Cross multiply
    2,735.97x = 4,104.62 × 788.16
  4. Step 4: Simplify right side
    2,735.97x = 3,235,097.30
  5. Step 5: Solve for x
    x = 3,235,097.30/2,735.97
  6. Step 6: Final answer
    x = 1,182.43

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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.