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Finding the Fourth Proportional to 46.60, 69.98 and 25.24

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Solution

The fourth proportional to 46.60, 69.98 and 25.24 is: 37.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.60 : 69.98 = 25.24 : x
  2. Step 2: Convert to fraction form
    46.60/69.98 = 25.24/x
  3. Step 3: Cross multiply
    46.60x = 69.98 × 25.24
  4. Step 4: Simplify right side
    46.60x = 1,766.30
  5. Step 5: Solve for x
    x = 1,766.30/46.60
  6. Step 6: Final answer
    x = 37.90

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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.