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Finding the Third Proportional to 18,195.75 and 29,178

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Solution

The third proportional to 18,195.75 and 29,178 is: 46,788.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.75 : 29,178 = 29,178 : x
  2. Step 2: Convert to fraction form
    18,195.75/29,178 = 29,178/x
  3. Step 3: Cross multiply
    18,195.75x = 29,178 × 29,178
  4. Step 4: Simplify right side
    18,195.75x = 851,355,684
  5. Step 5: Solve for x
    x = 851,355,684/18,195.75
  6. Step 6: Final answer
    x = 46,788.71

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.