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Finding the Fourth Proportional to 46.24, 69.38 and 15.82

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Solution

The fourth proportional to 46.24, 69.38 and 15.82 is: 23.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.24 : 69.38 = 15.82 : x
  2. Step 2: Convert to fraction form
    46.24/69.38 = 15.82/x
  3. Step 3: Cross multiply
    46.24x = 69.38 × 15.82
  4. Step 4: Simplify right side
    46.24x = 1,097.59
  5. Step 5: Solve for x
    x = 1,097.59/46.24
  6. Step 6: Final answer
    x = 23.74

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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.