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Finding the Third Proportional to 574 and 1,238

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Solution

The third proportional to 574 and 1,238 is: 2,670.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    574 : 1,238 = 1,238 : x
  2. Step 2: Convert to fraction form
    574/1,238 = 1,238/x
  3. Step 3: Cross multiply
    574x = 1,238 × 1,238
  4. Step 4: Simplify right side
    574x = 1,532,644
  5. Step 5: Solve for x
    x = 1,532,644/574
  6. Step 6: Final answer
    x = 2,670.11

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.