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Finding the Fourth Proportional to 23.94, 35.64 and 23.90

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Solution

The fourth proportional to 23.94, 35.64 and 23.90 is: 35.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.94 : 35.64 = 23.90 : x
  2. Step 2: Convert to fraction form
    23.94/35.64 = 23.90/x
  3. Step 3: Cross multiply
    23.94x = 35.64 × 23.90
  4. Step 4: Simplify right side
    23.94x = 851.62
  5. Step 5: Solve for x
    x = 851.62/23.94
  6. Step 6: Final answer
    x = 35.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.