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Finding the Fourth Proportional to 2,330.70, 3,496.13 and 791.50

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Solution

The fourth proportional to 2,330.70, 3,496.13 and 791.50 is: 1,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,330.70 : 3,496.13 = 791.50 : x
  2. Step 2: Convert to fraction form
    2,330.70/3,496.13 = 791.50/x
  3. Step 3: Cross multiply
    2,330.70x = 3,496.13 × 791.50
  4. Step 4: Simplify right side
    2,330.70x = 2,767,186.90
  5. Step 5: Solve for x
    x = 2,767,186.90/2,330.70
  6. Step 6: Final answer
    x = 1,187.28

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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.