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Finding the Fourth Proportional to 23.95, 32.98 and 19.85

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Solution

The fourth proportional to 23.95, 32.98 and 19.85 is: 27.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.95 : 32.98 = 19.85 : x
  2. Step 2: Convert to fraction form
    23.95/32.98 = 19.85/x
  3. Step 3: Cross multiply
    23.95x = 32.98 × 19.85
  4. Step 4: Simplify right side
    23.95x = 654.81
  5. Step 5: Solve for x
    x = 654.81/23.95
  6. Step 6: Final answer
    x = 27.34

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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.