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Finding the Third Proportional to 1.03 and 1.22

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Solution

The third proportional to 1.03 and 1.22 is: 1.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.03 : 1.22 = 1.22 : x
  2. Step 2: Convert to fraction form
    1.03/1.22 = 1.22/x
  3. Step 3: Cross multiply
    1.03x = 1.22 × 1.22
  4. Step 4: Simplify right side
    1.03x = 1.49
  5. Step 5: Solve for x
    x = 1.49/1.03
  6. Step 6: Final answer
    x = 1.44

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.