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Finding the Third Proportional to 523.50 and 769.88

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Solution

The third proportional to 523.50 and 769.88 is: 1,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.50 : 769.88 = 769.88 : x
  2. Step 2: Convert to fraction form
    523.50/769.88 = 769.88/x
  3. Step 3: Cross multiply
    523.50x = 769.88 × 769.88
  4. Step 4: Simplify right side
    523.50x = 592,707.52
  5. Step 5: Solve for x
    x = 592,707.52/523.50
  6. Step 6: Final answer
    x = 1,132.20

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.