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Finding the Fourth Proportional to 19.49, 26.84 and 16.76

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Solution

The fourth proportional to 19.49, 26.84 and 16.76 is: 23.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.49 : 26.84 = 16.76 : x
  2. Step 2: Convert to fraction form
    19.49/26.84 = 16.76/x
  3. Step 3: Cross multiply
    19.49x = 26.84 × 16.76
  4. Step 4: Simplify right side
    19.49x = 449.62
  5. Step 5: Solve for x
    x = 449.62/19.49
  6. Step 6: Final answer
    x = 23.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.