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Finding the Fourth Proportional to 19.36, 29.05 and 9.73

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Solution

The fourth proportional to 19.36, 29.05 and 9.73 is: 14.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.36 : 29.05 = 9.73 : x
  2. Step 2: Convert to fraction form
    19.36/29.05 = 9.73/x
  3. Step 3: Cross multiply
    19.36x = 29.05 × 9.73
  4. Step 4: Simplify right side
    19.36x = 282.54
  5. Step 5: Solve for x
    x = 282.54/19.36
  6. Step 6: Final answer
    x = 14.60

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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.