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Finding the Third Proportional to 188.38 and 412.25

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Solution

The third proportional to 188.38 and 412.25 is: 902.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.38 : 412.25 = 412.25 : x
  2. Step 2: Convert to fraction form
    188.38/412.25 = 412.25/x
  3. Step 3: Cross multiply
    188.38x = 412.25 × 412.25
  4. Step 4: Simplify right side
    188.38x = 169,950.06
  5. Step 5: Solve for x
    x = 169,950.06/188.38
  6. Step 6: Final answer
    x = 902.19

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.