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Finding the Third Proportional to 2,018 and 4,310

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Solution

The third proportional to 2,018 and 4,310 is: 9,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018 : 4,310 = 4,310 : x
  2. Step 2: Convert to fraction form
    2,018/4,310 = 4,310/x
  3. Step 3: Cross multiply
    2,018x = 4,310 × 4,310
  4. Step 4: Simplify right side
    2,018x = 18,576,100
  5. Step 5: Solve for x
    x = 18,576,100/2,018
  6. Step 6: Final answer
    x = 9,205.20

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.