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Finding the Fourth Proportional to 0.33, 0.45 and 0.24

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Solution

The fourth proportional to 0.33, 0.45 and 0.24 is: 0.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.33 : 0.45 = 0.24 : x
  2. Step 2: Convert to fraction form
    0.33/0.45 = 0.24/x
  3. Step 3: Cross multiply
    0.33x = 0.45 × 0.24
  4. Step 4: Simplify right side
    0.33x = 0.11
  5. Step 5: Solve for x
    x = 0.11/0.33
  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.