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Finding the Fourth Proportional to 33.86, 46.72 and 22.93

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Solution

The fourth proportional to 33.86, 46.72 and 22.93 is: 31.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.86 : 46.72 = 22.93 : x
  2. Step 2: Convert to fraction form
    33.86/46.72 = 22.93/x
  3. Step 3: Cross multiply
    33.86x = 46.72 × 22.93
  4. Step 4: Simplify right side
    33.86x = 1,071.29
  5. Step 5: Solve for x
    x = 1,071.29/33.86
  6. Step 6: Final answer
    x = 31.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.