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Finding the Third Proportional to 3,098 and 5,560

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Solution

The third proportional to 3,098 and 5,560 is: 9,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098 : 5,560 = 5,560 : x
  2. Step 2: Convert to fraction form
    3,098/5,560 = 5,560/x
  3. Step 3: Cross multiply
    3,098x = 5,560 × 5,560
  4. Step 4: Simplify right side
    3,098x = 30,913,600
  5. Step 5: Solve for x
    x = 30,913,600/3,098
  6. Step 6: Final answer
    x = 9,978.57

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.