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Finding the Third Proportional to 1,918 and 2,484

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Solution

The third proportional to 1,918 and 2,484 is: 3,217.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918 : 2,484 = 2,484 : x
  2. Step 2: Convert to fraction form
    1,918/2,484 = 2,484/x
  3. Step 3: Cross multiply
    1,918x = 2,484 × 2,484
  4. Step 4: Simplify right side
    1,918x = 6,170,256
  5. Step 5: Solve for x
    x = 6,170,256/1,918
  6. Step 6: Final answer
    x = 3,217.03

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.