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Finding the Third Proportional to 1,946 and 4,975

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Solution

The third proportional to 1,946 and 4,975 is: 12,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946 : 4,975 = 4,975 : x
  2. Step 2: Convert to fraction form
    1,946/4,975 = 4,975/x
  3. Step 3: Cross multiply
    1,946x = 4,975 × 4,975
  4. Step 4: Simplify right side
    1,946x = 24,750,625
  5. Step 5: Solve for x
    x = 24,750,625/1,946
  6. Step 6: Final answer
    x = 12,718.72

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.