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Finding the Third Proportional to 186.94 and 406.88

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Solution

The third proportional to 186.94 and 406.88 is: 885.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186.94 : 406.88 = 406.88 : x
  2. Step 2: Convert to fraction form
    186.94/406.88 = 406.88/x
  3. Step 3: Cross multiply
    186.94x = 406.88 × 406.88
  4. Step 4: Simplify right side
    186.94x = 165,547.27
  5. Step 5: Solve for x
    x = 165,547.27/186.94
  6. Step 6: Final answer
    x = 885.58

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.