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Finding the Fourth Proportional to 30.52, 45.74 and 16.24

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Solution

The fourth proportional to 30.52, 45.74 and 16.24 is: 24.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.52 : 45.74 = 16.24 : x
  2. Step 2: Convert to fraction form
    30.52/45.74 = 16.24/x
  3. Step 3: Cross multiply
    30.52x = 45.74 × 16.24
  4. Step 4: Simplify right side
    30.52x = 742.82
  5. Step 5: Solve for x
    x = 742.82/30.52
  6. Step 6: Final answer
    x = 24.34

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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.