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Finding the Third Proportional to 1.60 and 3.74

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Solution

The third proportional to 1.60 and 3.74 is: 8.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1.60 : 3.74 = 3.74 : x
  2. Step 2: Convert to fraction form
    1.60/3.74 = 3.74/x
  3. Step 3: Cross multiply
    1.60x = 3.74 × 3.74
  4. Step 4: Simplify right side
    1.60x = 13.97
  5. Step 5: Solve for x
    x = 13.97/1.60
  6. Step 6: Final answer
    x = 8.72

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.