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Finding the Fourth Proportional to 29.26, 43.86 and 9.99

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Solution

The fourth proportional to 29.26, 43.86 and 9.99 is: 14.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.26 : 43.86 = 9.99 : x
  2. Step 2: Convert to fraction form
    29.26/43.86 = 9.99/x
  3. Step 3: Cross multiply
    29.26x = 43.86 × 9.99
  4. Step 4: Simplify right side
    29.26x = 438.09
  5. Step 5: Solve for x
    x = 438.09/29.26
  6. Step 6: Final answer
    x = 14.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.