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Finding the Third Proportional to 19,818 and 26,946

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Solution

The third proportional to 19,818 and 26,946 is: 36,637.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818 : 26,946 = 26,946 : x
  2. Step 2: Convert to fraction form
    19,818/26,946 = 26,946/x
  3. Step 3: Cross multiply
    19,818x = 26,946 × 26,946
  4. Step 4: Simplify right side
    19,818x = 726,086,916
  5. Step 5: Solve for x
    x = 726,086,916/19,818
  6. Step 6: Final answer
    x = 36,637.75

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.