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Finding the Fourth Proportional to 23.74, 32.92 and 23.40

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Solution

The fourth proportional to 23.74, 32.92 and 23.40 is: 32.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.74 : 32.92 = 23.40 : x
  2. Step 2: Convert to fraction form
    23.74/32.92 = 23.40/x
  3. Step 3: Cross multiply
    23.74x = 32.92 × 23.40
  4. Step 4: Simplify right side
    23.74x = 770.33
  5. Step 5: Solve for x
    x = 770.33/23.74
  6. Step 6: Final answer
    x = 32.45

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.