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Finding the Fourth Proportional to 31.07, 46.59 and 16.62

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Solution

The fourth proportional to 31.07, 46.59 and 16.62 is: 24.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.07 : 46.59 = 16.62 : x
  2. Step 2: Convert to fraction form
    31.07/46.59 = 16.62/x
  3. Step 3: Cross multiply
    31.07x = 46.59 × 16.62
  4. Step 4: Simplify right side
    31.07x = 774.33
  5. Step 5: Solve for x
    x = 774.33/31.07
  6. Step 6: Final answer
    x = 24.92

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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.