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Finding the Fourth Proportional to 46.67, 69.96 and 19.59

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Solution

The fourth proportional to 46.67, 69.96 and 19.59 is: 29.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.67 : 69.96 = 19.59 : x
  2. Step 2: Convert to fraction form
    46.67/69.96 = 19.59/x
  3. Step 3: Cross multiply
    46.67x = 69.96 × 19.59
  4. Step 4: Simplify right side
    46.67x = 1,370.52
  5. Step 5: Solve for x
    x = 1,370.52/46.67
  6. Step 6: Final answer
    x = 29.37

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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.