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Finding the Third Proportional to 18,879.75 and 29,133

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Solution

The third proportional to 18,879.75 and 29,133 is: 44,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,879.75 : 29,133 = 29,133 : x
  2. Step 2: Convert to fraction form
    18,879.75/29,133 = 29,133/x
  3. Step 3: Cross multiply
    18,879.75x = 29,133 × 29,133
  4. Step 4: Simplify right side
    18,879.75x = 848,731,689
  5. Step 5: Solve for x
    x = 848,731,689/18,879.75
  6. Step 6: Final answer
    x = 44,954.60

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.