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Finding the Third Proportional to 45,532 and 68,430

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Solution

The third proportional to 45,532 and 68,430 is: 102,843.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,532 : 68,430 = 68,430 : x
  2. Step 2: Convert to fraction form
    45,532/68,430 = 68,430/x
  3. Step 3: Cross multiply
    45,532x = 68,430 × 68,430
  4. Step 4: Simplify right side
    45,532x = 4,682,664,900
  5. Step 5: Solve for x
    x = 4,682,664,900/45,532
  6. Step 6: Final answer
    x = 102,843.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.