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Finding the Third Proportional to 50,382 and 70,623

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Solution

The third proportional to 50,382 and 70,623 is: 98,995.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,382 : 70,623 = 70,623 : x
  2. Step 2: Convert to fraction form
    50,382/70,623 = 70,623/x
  3. Step 3: Cross multiply
    50,382x = 70,623 × 70,623
  4. Step 4: Simplify right side
    50,382x = 4,987,608,129
  5. Step 5: Solve for x
    x = 4,987,608,129/50,382
  6. Step 6: Final answer
    x = 98,995.83

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.