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Finding the Third Proportional to 46.13 and 119.81

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Solution

The third proportional to 46.13 and 119.81 is: 311.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.13 : 119.81 = 119.81 : x
  2. Step 2: Convert to fraction form
    46.13/119.81 = 119.81/x
  3. Step 3: Cross multiply
    46.13x = 119.81 × 119.81
  4. Step 4: Simplify right side
    46.13x = 14,355.04
  5. Step 5: Solve for x
    x = 14,355.04/46.13
  6. Step 6: Final answer
    x = 311.22

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Why These Related Problems?

These problems maintain the same ratio (2.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.