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Finding the Third Proportional to 47,395 and 71,213

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Solution

The third proportional to 47,395 and 71,213 is: 107,000.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,395 : 71,213 = 71,213 : x
  2. Step 2: Convert to fraction form
    47,395/71,213 = 71,213/x
  3. Step 3: Cross multiply
    47,395x = 71,213 × 71,213
  4. Step 4: Simplify right side
    47,395x = 5,071,291,369
  5. Step 5: Solve for x
    x = 5,071,291,369/47,395
  6. Step 6: Final answer
    x = 107,000.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.