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Finding the Third Proportional to 523.50 and 852.75

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Solution

The third proportional to 523.50 and 852.75 is: 1,389.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.50 : 852.75 = 852.75 : x
  2. Step 2: Convert to fraction form
    523.50/852.75 = 852.75/x
  3. Step 3: Cross multiply
    523.50x = 852.75 × 852.75
  4. Step 4: Simplify right side
    523.50x = 727,182.56
  5. Step 5: Solve for x
    x = 727,182.56/523.50
  6. Step 6: Final answer
    x = 1,389.08

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.