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Finding the Third Proportional to 247.50 and 523.69

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Solution

The third proportional to 247.50 and 523.69 is: 1,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.50 : 523.69 = 523.69 : x
  2. Step 2: Convert to fraction form
    247.50/523.69 = 523.69/x
  3. Step 3: Cross multiply
    247.50x = 523.69 × 523.69
  4. Step 4: Simplify right side
    247.50x = 274,248.60
  5. Step 5: Solve for x
    x = 274,248.60/247.50
  6. Step 6: Final answer
    x = 1,108.08

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.