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Finding the Fourth Proportional to 2,354.16, 3,531.24 and 793.88

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Solution

The fourth proportional to 2,354.16, 3,531.24 and 793.88 is: 1,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.16 : 3,531.24 = 793.88 : x
  2. Step 2: Convert to fraction form
    2,354.16/3,531.24 = 793.88/x
  3. Step 3: Cross multiply
    2,354.16x = 3,531.24 × 793.88
  4. Step 4: Simplify right side
    2,354.16x = 2,803,363.16
  5. Step 5: Solve for x
    x = 2,803,363.16/2,354.16
  6. Step 6: Final answer
    x = 1,190.81

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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.