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Finding the Third Proportional to 1.90 and 2.95

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Solution

The third proportional to 1.90 and 2.95 is: 4.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.90 : 2.95 = 2.95 : x
  2. Step 2: Convert to fraction form
    1.90/2.95 = 2.95/x
  3. Step 3: Cross multiply
    1.90x = 2.95 × 2.95
  4. Step 4: Simplify right side
    1.90x = 8.72
  5. Step 5: Solve for x
    x = 8.72/1.90
  6. Step 6: Final answer
    x = 4.59

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.