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Finding the Fourth Proportional to 64.44, 96.28 and 44

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Solution

The fourth proportional to 64.44, 96.28 and 44 is: 65.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.44 : 96.28 = 44 : x
  2. Step 2: Convert to fraction form
    64.44/96.28 = 44/x
  3. Step 3: Cross multiply
    64.44x = 96.28 × 44
  4. Step 4: Simplify right side
    64.44x = 4,236.32
  5. Step 5: Solve for x
    x = 4,236.32/64.44
  6. Step 6: Final answer
    x = 65.74

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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.