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Finding the Third Proportional to 32,456 and 67,378

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Solution

The third proportional to 32,456 and 67,378 is: 139,875.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,456 : 67,378 = 67,378 : x
  2. Step 2: Convert to fraction form
    32,456/67,378 = 67,378/x
  3. Step 3: Cross multiply
    32,456x = 67,378 × 67,378
  4. Step 4: Simplify right side
    32,456x = 4,539,794,884
  5. Step 5: Solve for x
    x = 4,539,794,884/32,456
  6. Step 6: Final answer
    x = 139,875.37

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.