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Finding the Third Proportional to 47,190 and 72,433

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Solution

The third proportional to 47,190 and 72,433 is: 111,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,190 : 72,433 = 72,433 : x
  2. Step 2: Convert to fraction form
    47,190/72,433 = 72,433/x
  3. Step 3: Cross multiply
    47,190x = 72,433 × 72,433
  4. Step 4: Simplify right side
    47,190x = 5,246,539,489
  5. Step 5: Solve for x
    x = 5,246,539,489/47,190
  6. Step 6: Final answer
    x = 111,179.05

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.