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Finding the Third Proportional to 186.26 and 279.07

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Solution

The third proportional to 186.26 and 279.07 is: 418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.26 : 279.07 = 279.07 : x
  2. Step 2: Convert to fraction form
    186.26/279.07 = 279.07/x
  3. Step 3: Cross multiply
    186.26x = 279.07 × 279.07
  4. Step 4: Simplify right side
    186.26x = 77,880.24
  5. Step 5: Solve for x
    x = 77,880.24/186.26
  6. Step 6: Final answer
    x = 418.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.