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Finding the Third Proportional to 622 and 1,024

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Solution

The third proportional to 622 and 1,024 is: 1,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    622 : 1,024 = 1,024 : x
  2. Step 2: Convert to fraction form
    622/1,024 = 1,024/x
  3. Step 3: Cross multiply
    622x = 1,024 × 1,024
  4. Step 4: Simplify right side
    622x = 1,048,576
  5. Step 5: Solve for x
    x = 1,048,576/622
  6. Step 6: Final answer
    x = 1,685.81

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.