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Finding the Third Proportional to 1.26 and 1.32

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Solution

The third proportional to 1.26 and 1.32 is: 1.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.26 : 1.32 = 1.32 : x
  2. Step 2: Convert to fraction form
    1.26/1.32 = 1.32/x
  3. Step 3: Cross multiply
    1.26x = 1.32 × 1.32
  4. Step 4: Simplify right side
    1.26x = 1.74
  5. Step 5: Solve for x
    x = 1.74/1.26
  6. Step 6: Final answer
    x = 1.38

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Why These Related Problems?

These problems maintain the same ratio (1.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.