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Finding the Fourth Proportional to 0.41, 0.61 and 0.16

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Solution

The fourth proportional to 0.41, 0.61 and 0.16 is: 0.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    0.41 : 0.61 = 0.16 : x
  2. Step 2: Convert to fraction form
    0.41/0.61 = 0.16/x
  3. Step 3: Cross multiply
    0.41x = 0.61 × 0.16
  4. Step 4: Simplify right side
    0.41x = 0.10
  5. Step 5: Solve for x
    x = 0.10/0.41
  6. Step 6: Final answer
    x = 0.24

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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.