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Finding the Fourth Proportional to 49.45, 74.14 and 17.41

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Solution

The fourth proportional to 49.45, 74.14 and 17.41 is: 26.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.45 : 74.14 = 17.41 : x
  2. Step 2: Convert to fraction form
    49.45/74.14 = 17.41/x
  3. Step 3: Cross multiply
    49.45x = 74.14 × 17.41
  4. Step 4: Simplify right side
    49.45x = 1,290.69
  5. Step 5: Solve for x
    x = 1,290.69/49.45
  6. Step 6: Final answer
    x = 26.10

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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.