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Finding the Third Proportional to 29,912 and 46,449

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Solution

The third proportional to 29,912 and 46,449 is: 72,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,912 : 46,449 = 46,449 : x
  2. Step 2: Convert to fraction form
    29,912/46,449 = 46,449/x
  3. Step 3: Cross multiply
    29,912x = 46,449 × 46,449
  4. Step 4: Simplify right side
    29,912x = 2,157,509,601
  5. Step 5: Solve for x
    x = 2,157,509,601/29,912
  6. Step 6: Final answer
    x = 72,128.56

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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.