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Finding the Fourth Proportional to 23.48, 31.96 and 23.36

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Solution

The fourth proportional to 23.48, 31.96 and 23.36 is: 31.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.48 : 31.96 = 23.36 : x
  2. Step 2: Convert to fraction form
    23.48/31.96 = 23.36/x
  3. Step 3: Cross multiply
    23.48x = 31.96 × 23.36
  4. Step 4: Simplify right side
    23.48x = 746.59
  5. Step 5: Solve for x
    x = 746.59/23.48
  6. Step 6: Final answer
    x = 31.80

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.