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Finding the Fourth Proportional to 46.64, 69.90 and 41.79

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Solution

The fourth proportional to 46.64, 69.90 and 41.79 is: 62.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.64 : 69.90 = 41.79 : x
  2. Step 2: Convert to fraction form
    46.64/69.90 = 41.79/x
  3. Step 3: Cross multiply
    46.64x = 69.90 × 41.79
  4. Step 4: Simplify right side
    46.64x = 2,921.23
  5. Step 5: Solve for x
    x = 2,921.23/46.64
  6. Step 6: Final answer
    x = 62.63

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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.