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Finding the Third Proportional to 239.63 and 523.13

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Solution

The third proportional to 239.63 and 523.13 is: 1,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239.63 : 523.13 = 523.13 : x
  2. Step 2: Convert to fraction form
    239.63/523.13 = 523.13/x
  3. Step 3: Cross multiply
    239.63x = 523.13 × 523.13
  4. Step 4: Simplify right side
    239.63x = 273,659.77
  5. Step 5: Solve for x
    x = 273,659.77/239.63
  6. Step 6: Final answer
    x = 1,142.03

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.