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Finding the Third Proportional to 3,020 and 4,622

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Solution

The third proportional to 3,020 and 4,622 is: 7,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020 : 4,622 = 4,622 : x
  2. Step 2: Convert to fraction form
    3,020/4,622 = 4,622/x
  3. Step 3: Cross multiply
    3,020x = 4,622 × 4,622
  4. Step 4: Simplify right side
    3,020x = 21,362,884
  5. Step 5: Solve for x
    x = 21,362,884/3,020
  6. Step 6: Final answer
    x = 7,073.80

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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.