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Finding the Third Proportional to 3,812 and 7,300

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Solution

The third proportional to 3,812 and 7,300 is: 13,979.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812 : 7,300 = 7,300 : x
  2. Step 2: Convert to fraction form
    3,812/7,300 = 7,300/x
  3. Step 3: Cross multiply
    3,812x = 7,300 × 7,300
  4. Step 4: Simplify right side
    3,812x = 53,290,000
  5. Step 5: Solve for x
    x = 53,290,000/3,812
  6. Step 6: Final answer
    x = 13,979.54

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.