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Finding the Third Proportional to 47,188 and 72,430

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Solution

The third proportional to 47,188 and 72,430 is: 111,174.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,188 : 72,430 = 72,430 : x
  2. Step 2: Convert to fraction form
    47,188/72,430 = 72,430/x
  3. Step 3: Cross multiply
    47,188x = 72,430 × 72,430
  4. Step 4: Simplify right side
    47,188x = 5,246,104,900
  5. Step 5: Solve for x
    x = 5,246,104,900/47,188
  6. Step 6: Final answer
    x = 111,174.55

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