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Finding the Fourth Proportional to 55.46, 83.18 and 16.94

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Solution

The fourth proportional to 55.46, 83.18 and 16.94 is: 25.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.46 : 83.18 = 16.94 : x
  2. Step 2: Convert to fraction form
    55.46/83.18 = 16.94/x
  3. Step 3: Cross multiply
    55.46x = 83.18 × 16.94
  4. Step 4: Simplify right side
    55.46x = 1,409.07
  5. Step 5: Solve for x
    x = 1,409.07/55.46
  6. Step 6: Final answer
    x = 25.41

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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.