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Finding the Third Proportional to 744 and 817.50

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Solution

The third proportional to 744 and 817.50 is: 898.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    744 : 817.50 = 817.50 : x
  2. Step 2: Convert to fraction form
    744/817.50 = 817.50/x
  3. Step 3: Cross multiply
    744x = 817.50 × 817.50
  4. Step 4: Simplify right side
    744x = 668,306.25
  5. Step 5: Solve for x
    x = 668,306.25/744
  6. Step 6: Final answer
    x = 898.26

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These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.