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Finding the Third Proportional to 0.85 and 1.11

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Solution

The third proportional to 0.85 and 1.11 is: 1.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.85 : 1.11 = 1.11 : x
  2. Step 2: Convert to fraction form
    0.85/1.11 = 1.11/x
  3. Step 3: Cross multiply
    0.85x = 1.11 × 1.11
  4. Step 4: Simplify right side
    0.85x = 1.24
  5. Step 5: Solve for x
    x = 1.24/0.85
  6. Step 6: Final answer
    x = 1.46

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.