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Finding the Fourth Proportional to 31.36, 46.98 and 23.35

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Solution

The fourth proportional to 31.36, 46.98 and 23.35 is: 34.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.36 : 46.98 = 23.35 : x
  2. Step 2: Convert to fraction form
    31.36/46.98 = 23.35/x
  3. Step 3: Cross multiply
    31.36x = 46.98 × 23.35
  4. Step 4: Simplify right side
    31.36x = 1,096.98
  5. Step 5: Solve for x
    x = 1,096.98/31.36
  6. Step 6: Final answer
    x = 34.98

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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.