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Finding the Fourth Proportional to 33.51, 46.18 and 31.93

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Solution

The fourth proportional to 33.51, 46.18 and 31.93 is: 44.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.51 : 46.18 = 31.93 : x
  2. Step 2: Convert to fraction form
    33.51/46.18 = 31.93/x
  3. Step 3: Cross multiply
    33.51x = 46.18 × 31.93
  4. Step 4: Simplify right side
    33.51x = 1,474.53
  5. Step 5: Solve for x
    x = 1,474.53/33.51
  6. Step 6: Final answer
    x = 44.00

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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.