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Finding the Fourth Proportional to 32.60, 44.99 and 18.79

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Solution

The fourth proportional to 32.60, 44.99 and 18.79 is: 25.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.60 : 44.99 = 18.79 : x
  2. Step 2: Convert to fraction form
    32.60/44.99 = 18.79/x
  3. Step 3: Cross multiply
    32.60x = 44.99 × 18.79
  4. Step 4: Simplify right side
    32.60x = 845.16
  5. Step 5: Solve for x
    x = 845.16/32.60
  6. Step 6: Final answer
    x = 25.92

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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.