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Finding the Fourth Proportional to 31.04, 46.56 and 16.58

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Solution

The fourth proportional to 31.04, 46.56 and 16.58 is: 24.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31.04 : 46.56 = 16.58 : x
  2. Step 2: Convert to fraction form
    31.04/46.56 = 16.58/x
  3. Step 3: Cross multiply
    31.04x = 46.56 × 16.58
  4. Step 4: Simplify right side
    31.04x = 771.96
  5. Step 5: Solve for x
    x = 771.96/31.04
  6. Step 6: Final answer
    x = 24.87

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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.