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Finding the Third Proportional to 30,894 and 47,961

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Solution

The third proportional to 30,894 and 47,961 is: 74,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,894 : 47,961 = 47,961 : x
  2. Step 2: Convert to fraction form
    30,894/47,961 = 47,961/x
  3. Step 3: Cross multiply
    30,894x = 47,961 × 47,961
  4. Step 4: Simplify right side
    30,894x = 2,300,257,521
  5. Step 5: Solve for x
    x = 2,300,257,521/30,894
  6. Step 6: Final answer
    x = 74,456.45

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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.