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Finding the Fourth Proportional to 25.72, 35.49 and 16.01

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Solution

The fourth proportional to 25.72, 35.49 and 16.01 is: 22.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.72 : 35.49 = 16.01 : x
  2. Step 2: Convert to fraction form
    25.72/35.49 = 16.01/x
  3. Step 3: Cross multiply
    25.72x = 35.49 × 16.01
  4. Step 4: Simplify right side
    25.72x = 568.19
  5. Step 5: Solve for x
    x = 568.19/25.72
  6. Step 6: Final answer
    x = 22.09

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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.