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Finding the Third Proportional to 534.25 and 818.50

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Solution

The third proportional to 534.25 and 818.50 is: 1,253.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.25 : 818.50 = 818.50 : x
  2. Step 2: Convert to fraction form
    534.25/818.50 = 818.50/x
  3. Step 3: Cross multiply
    534.25x = 818.50 × 818.50
  4. Step 4: Simplify right side
    534.25x = 669,942.25
  5. Step 5: Solve for x
    x = 669,942.25/534.25
  6. Step 6: Final answer
    x = 1,253.99

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.