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Finding the Fourth Proportional to 2,354.15, 3,531.75 and 794.10

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Solution

The fourth proportional to 2,354.15, 3,531.75 and 794.10 is: 1,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.15 : 3,531.75 = 794.10 : x
  2. Step 2: Convert to fraction form
    2,354.15/3,531.75 = 794.10/x
  3. Step 3: Cross multiply
    2,354.15x = 3,531.75 × 794.10
  4. Step 4: Simplify right side
    2,354.15x = 2,804,562.68
  5. Step 5: Solve for x
    x = 2,804,562.68/2,354.15
  6. Step 6: Final answer
    x = 1,191.33

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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.