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Finding the Third Proportional to 47,646 and 74,187

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Solution

The third proportional to 47,646 and 74,187 is: 115,512.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,646 : 74,187 = 74,187 : x
  2. Step 2: Convert to fraction form
    47,646/74,187 = 74,187/x
  3. Step 3: Cross multiply
    47,646x = 74,187 × 74,187
  4. Step 4: Simplify right side
    47,646x = 5,503,710,969
  5. Step 5: Solve for x
    x = 5,503,710,969/47,646
  6. Step 6: Final answer
    x = 115,512.55

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.