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Finding the Third Proportional to 1,864 and 2,486

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Solution

The third proportional to 1,864 and 2,486 is: 3,315.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864 : 2,486 = 2,486 : x
  2. Step 2: Convert to fraction form
    1,864/2,486 = 2,486/x
  3. Step 3: Cross multiply
    1,864x = 2,486 × 2,486
  4. Step 4: Simplify right side
    1,864x = 6,180,196
  5. Step 5: Solve for x
    x = 6,180,196/1,864
  6. Step 6: Final answer
    x = 3,315.56

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.