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Finding the Fourth Proportional to 1.97, 2.95 and 0.84

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Solution

The fourth proportional to 1.97, 2.95 and 0.84 is: 1.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.97 : 2.95 = 0.84 : x
  2. Step 2: Convert to fraction form
    1.97/2.95 = 0.84/x
  3. Step 3: Cross multiply
    1.97x = 2.95 × 0.84
  4. Step 4: Simplify right side
    1.97x = 2.49
  5. Step 5: Solve for x
    x = 2.49/1.97
  6. Step 6: Final answer
    x = 1.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.