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Finding the Third Proportional to 0.97 and 1.42

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Solution

The third proportional to 0.97 and 1.42 is: 2.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.97 : 1.42 = 1.42 : x
  2. Step 2: Convert to fraction form
    0.97/1.42 = 1.42/x
  3. Step 3: Cross multiply
    0.97x = 1.42 × 1.42
  4. Step 4: Simplify right side
    0.97x = 2.02
  5. Step 5: Solve for x
    x = 2.02/0.97
  6. Step 6: Final answer
    x = 2.09

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.