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Finding the Fourth Proportional to 23.74, 32.77 and 15.98

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Solution

The fourth proportional to 23.74, 32.77 and 15.98 is: 22.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.74 : 32.77 = 15.98 : x
  2. Step 2: Convert to fraction form
    23.74/32.77 = 15.98/x
  3. Step 3: Cross multiply
    23.74x = 32.77 × 15.98
  4. Step 4: Simplify right side
    23.74x = 523.66
  5. Step 5: Solve for x
    x = 523.66/23.74
  6. Step 6: Final answer
    x = 22.06

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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.