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Finding the Fourth Proportional to 23.76, 32.74 and 16.84

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Solution

The fourth proportional to 23.76, 32.74 and 16.84 is: 23.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.76 : 32.74 = 16.84 : x
  2. Step 2: Convert to fraction form
    23.76/32.74 = 16.84/x
  3. Step 3: Cross multiply
    23.76x = 32.74 × 16.84
  4. Step 4: Simplify right side
    23.76x = 551.34
  5. Step 5: Solve for x
    x = 551.34/23.76
  6. Step 6: Final answer
    x = 23.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.