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Finding the Third Proportional to 1,956 and 3,018

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Solution

The third proportional to 1,956 and 3,018 is: 4,656.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,956 : 3,018 = 3,018 : x
  2. Step 2: Convert to fraction form
    1,956/3,018 = 3,018/x
  3. Step 3: Cross multiply
    1,956x = 3,018 × 3,018
  4. Step 4: Simplify right side
    1,956x = 9,108,324
  5. Step 5: Solve for x
    x = 9,108,324/1,956
  6. Step 6: Final answer
    x = 4,656.61

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.