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Finding the Third Proportional to 18.98 and 26.58

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Solution

The third proportional to 18.98 and 26.58 is: 37.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18.98 : 26.58 = 26.58 : x
  2. Step 2: Convert to fraction form
    18.98/26.58 = 26.58/x
  3. Step 3: Cross multiply
    18.98x = 26.58 × 26.58
  4. Step 4: Simplify right side
    18.98x = 706.40
  5. Step 5: Solve for x
    x = 706.40/18.98
  6. Step 6: Final answer
    x = 37.21

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.