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Finding the Fourth Proportional to 46.67, 64.37 and 31.92

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Solution

The fourth proportional to 46.67, 64.37 and 31.92 is: 44.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.67 : 64.37 = 31.92 : x
  2. Step 2: Convert to fraction form
    46.67/64.37 = 31.92/x
  3. Step 3: Cross multiply
    46.67x = 64.37 × 31.92
  4. Step 4: Simplify right side
    46.67x = 2,054.53
  5. Step 5: Solve for x
    x = 2,054.53/46.67
  6. Step 6: Final answer
    x = 44.03

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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.