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Finding the Third Proportional to 5,080 and 9,560

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Solution

The third proportional to 5,080 and 9,560 is: 17,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,080 : 9,560 = 9,560 : x
  2. Step 2: Convert to fraction form
    5,080/9,560 = 9,560/x
  3. Step 3: Cross multiply
    5,080x = 9,560 × 9,560
  4. Step 4: Simplify right side
    5,080x = 91,393,600
  5. Step 5: Solve for x
    x = 91,393,600/5,080
  6. Step 6: Final answer
    x = 17,990.87

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.