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Finding the Third Proportional to 3,880 and 6,080

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Solution

The third proportional to 3,880 and 6,080 is: 9,527.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880 : 6,080 = 6,080 : x
  2. Step 2: Convert to fraction form
    3,880/6,080 = 6,080/x
  3. Step 3: Cross multiply
    3,880x = 6,080 × 6,080
  4. Step 4: Simplify right side
    3,880x = 36,966,400
  5. Step 5: Solve for x
    x = 36,966,400/3,880
  6. Step 6: Final answer
    x = 9,527.42

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.