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Finding the Fourth Proportional to 32.44, 48.32 and 31.59

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Solution

The fourth proportional to 32.44, 48.32 and 31.59 is: 47.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.44 : 48.32 = 31.59 : x
  2. Step 2: Convert to fraction form
    32.44/48.32 = 31.59/x
  3. Step 3: Cross multiply
    32.44x = 48.32 × 31.59
  4. Step 4: Simplify right side
    32.44x = 1,526.43
  5. Step 5: Solve for x
    x = 1,526.43/32.44
  6. Step 6: Final answer
    x = 47.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.