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Finding the Third Proportional to 34,480 and 52,420

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Solution

The third proportional to 34,480 and 52,420 is: 79,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,480 : 52,420 = 52,420 : x
  2. Step 2: Convert to fraction form
    34,480/52,420 = 52,420/x
  3. Step 3: Cross multiply
    34,480x = 52,420 × 52,420
  4. Step 4: Simplify right side
    34,480x = 2,747,856,400
  5. Step 5: Solve for x
    x = 2,747,856,400/34,480
  6. Step 6: Final answer
    x = 79,694.21

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.