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Finding the Third Proportional to 2,120 and 4,024

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Solution

The third proportional to 2,120 and 4,024 is: 7,638.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120 : 4,024 = 4,024 : x
  2. Step 2: Convert to fraction form
    2,120/4,024 = 4,024/x
  3. Step 3: Cross multiply
    2,120x = 4,024 × 4,024
  4. Step 4: Simplify right side
    2,120x = 16,192,576
  5. Step 5: Solve for x
    x = 16,192,576/2,120
  6. Step 6: Final answer
    x = 7,638.01

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.