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Finding the Third Proportional to 45,423 and 68,544

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Solution

The third proportional to 45,423 and 68,544 is: 103,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,423 : 68,544 = 68,544 : x
  2. Step 2: Convert to fraction form
    45,423/68,544 = 68,544/x
  3. Step 3: Cross multiply
    45,423x = 68,544 × 68,544
  4. Step 4: Simplify right side
    45,423x = 4,698,279,936
  5. Step 5: Solve for x
    x = 4,698,279,936/45,423
  6. Step 6: Final answer
    x = 103,433.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.