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Finding the Fourth Proportional to 32.96, 45.49 and 18.41

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Solution

The fourth proportional to 32.96, 45.49 and 18.41 is: 25.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.96 : 45.49 = 18.41 : x
  2. Step 2: Convert to fraction form
    32.96/45.49 = 18.41/x
  3. Step 3: Cross multiply
    32.96x = 45.49 × 18.41
  4. Step 4: Simplify right side
    32.96x = 837.15
  5. Step 5: Solve for x
    x = 837.15/32.96
  6. Step 6: Final answer
    x = 25.40

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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.