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Finding the Fourth Proportional to 32.34, 48.52 and 31.74

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Solution

The fourth proportional to 32.34, 48.52 and 31.74 is: 47.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.34 : 48.52 = 31.74 : x
  2. Step 2: Convert to fraction form
    32.34/48.52 = 31.74/x
  3. Step 3: Cross multiply
    32.34x = 48.52 × 31.74
  4. Step 4: Simplify right side
    32.34x = 1,540.02
  5. Step 5: Solve for x
    x = 1,540.02/32.34
  6. Step 6: Final answer
    x = 47.62

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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.