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Finding the Fourth Proportional to 79.07, 118.56 and 24.95

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Solution

The fourth proportional to 79.07, 118.56 and 24.95 is: 37.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.07 : 118.56 = 24.95 : x
  2. Step 2: Convert to fraction form
    79.07/118.56 = 24.95/x
  3. Step 3: Cross multiply
    79.07x = 118.56 × 24.95
  4. Step 4: Simplify right side
    79.07x = 2,957.48
  5. Step 5: Solve for x
    x = 2,957.48/79.07
  6. Step 6: Final answer
    x = 37.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.