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Finding the Third Proportional to 188.88 and 412.38

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Solution

The third proportional to 188.88 and 412.38 is: 900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188.88 : 412.38 = 412.38 : x
  2. Step 2: Convert to fraction form
    188.88/412.38 = 412.38/x
  3. Step 3: Cross multiply
    188.88x = 412.38 × 412.38
  4. Step 4: Simplify right side
    188.88x = 170,053.14
  5. Step 5: Solve for x
    x = 170,053.14/188.88
  6. Step 6: Final answer
    x = 900.35

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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.