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Finding the Third Proportional to 48,128 and 72,192

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Solution

The third proportional to 48,128 and 72,192 is: 108,288

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,128 : 72,192 = 72,192 : x
  2. Step 2: Convert to fraction form
    48,128/72,192 = 72,192/x
  3. Step 3: Cross multiply
    48,128x = 72,192 × 72,192
  4. Step 4: Simplify right side
    48,128x = 5,211,684,864
  5. Step 5: Solve for x
    x = 5,211,684,864/48,128
  6. Step 6: Final answer
    x = 108,288

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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.