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Finding the Third Proportional to 3,790 and 8,030

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Solution

The third proportional to 3,790 and 8,030 is: 17,013.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790 : 8,030 = 8,030 : x
  2. Step 2: Convert to fraction form
    3,790/8,030 = 8,030/x
  3. Step 3: Cross multiply
    3,790x = 8,030 × 8,030
  4. Step 4: Simplify right side
    3,790x = 64,480,900
  5. Step 5: Solve for x
    x = 64,480,900/3,790
  6. Step 6: Final answer
    x = 17,013.43

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.