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Finding the Third Proportional to 30,861 and 47,573

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Solution

The third proportional to 30,861 and 47,573 is: 73,334.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861 : 47,573 = 47,573 : x
  2. Step 2: Convert to fraction form
    30,861/47,573 = 47,573/x
  3. Step 3: Cross multiply
    30,861x = 47,573 × 47,573
  4. Step 4: Simplify right side
    30,861x = 2,263,190,329
  5. Step 5: Solve for x
    x = 2,263,190,329/30,861
  6. Step 6: Final answer
    x = 73,334.96

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.