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Finding the Third Proportional to 0.91 and 1.02

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Solution

The third proportional to 0.91 and 1.02 is: 1.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.91 : 1.02 = 1.02 : x
  2. Step 2: Convert to fraction form
    0.91/1.02 = 1.02/x
  3. Step 3: Cross multiply
    0.91x = 1.02 × 1.02
  4. Step 4: Simplify right side
    0.91x = 1.04
  5. Step 5: Solve for x
    x = 1.04/0.91
  6. Step 6: Final answer
    x = 1.14

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.