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Finding the Fourth Proportional to 0.38, 0.52 and 0.24

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Solution

The fourth proportional to 0.38, 0.52 and 0.24 is: 0.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.38 : 0.52 = 0.24 : x
  2. Step 2: Convert to fraction form
    0.38/0.52 = 0.24/x
  3. Step 3: Cross multiply
    0.38x = 0.52 × 0.24
  4. Step 4: Simplify right side
    0.38x = 0.13
  5. Step 5: Solve for x
    x = 0.13/0.38
  6. Step 6: Final answer
    x = 0.33

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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.