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Finding the Third Proportional to 48,231 and 74,673

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Solution

The third proportional to 48,231 and 74,673 is: 115,611.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,231 : 74,673 = 74,673 : x
  2. Step 2: Convert to fraction form
    48,231/74,673 = 74,673/x
  3. Step 3: Cross multiply
    48,231x = 74,673 × 74,673
  4. Step 4: Simplify right side
    48,231x = 5,576,056,929
  5. Step 5: Solve for x
    x = 5,576,056,929/48,231
  6. Step 6: Final answer
    x = 115,611.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.