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Finding the Fourth Proportional to 2,434.65, 3,652.11 and 791.25

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Solution

The fourth proportional to 2,434.65, 3,652.11 and 791.25 is: 1,186.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,434.65 : 3,652.11 = 791.25 : x
  2. Step 2: Convert to fraction form
    2,434.65/3,652.11 = 791.25/x
  3. Step 3: Cross multiply
    2,434.65x = 3,652.11 × 791.25
  4. Step 4: Simplify right side
    2,434.65x = 2,889,732.04
  5. Step 5: Solve for x
    x = 2,889,732.04/2,434.65
  6. Step 6: Final answer
    x = 1,186.92

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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.