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Finding the Third Proportional to 47,571 and 74,080

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Solution

The third proportional to 47,571 and 74,080 is: 115,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,571 : 74,080 = 74,080 : x
  2. Step 2: Convert to fraction form
    47,571/74,080 = 74,080/x
  3. Step 3: Cross multiply
    47,571x = 74,080 × 74,080
  4. Step 4: Simplify right side
    47,571x = 5,487,846,400
  5. Step 5: Solve for x
    x = 5,487,846,400/47,571
  6. Step 6: Final answer
    x = 115,361.17

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.