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Finding the Third Proportional to 13,420 and 25,622

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Solution

The third proportional to 13,420 and 25,622 is: 48,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420 : 25,622 = 25,622 : x
  2. Step 2: Convert to fraction form
    13,420/25,622 = 25,622/x
  3. Step 3: Cross multiply
    13,420x = 25,622 × 25,622
  4. Step 4: Simplify right side
    13,420x = 656,486,884
  5. Step 5: Solve for x
    x = 656,486,884/13,420
  6. Step 6: Final answer
    x = 48,918.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.