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Finding the Third Proportional to 0.38 and 0.63

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Solution

The third proportional to 0.38 and 0.63 is: 1.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.38 : 0.63 = 0.63 : x
  2. Step 2: Convert to fraction form
    0.38/0.63 = 0.63/x
  3. Step 3: Cross multiply
    0.38x = 0.63 × 0.63
  4. Step 4: Simplify right side
    0.38x = 0.39
  5. Step 5: Solve for x
    x = 0.39/0.38
  6. Step 6: Final answer
    x = 1.04

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.