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Finding the Third Proportional to 46.75 and 122.13

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Solution

The third proportional to 46.75 and 122.13 is: 319.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.75 : 122.13 = 122.13 : x
  2. Step 2: Convert to fraction form
    46.75/122.13 = 122.13/x
  3. Step 3: Cross multiply
    46.75x = 122.13 × 122.13
  4. Step 4: Simplify right side
    46.75x = 14,914.52
  5. Step 5: Solve for x
    x = 14,914.52/46.75
  6. Step 6: Final answer
    x = 319.03

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Why These Related Problems?

These problems maintain the same ratio (2.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.