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Finding the Fourth Proportional to 48.84, 73.61 and 44.43

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Solution

The fourth proportional to 48.84, 73.61 and 44.43 is: 66.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.84 : 73.61 = 44.43 : x
  2. Step 2: Convert to fraction form
    48.84/73.61 = 44.43/x
  3. Step 3: Cross multiply
    48.84x = 73.61 × 44.43
  4. Step 4: Simplify right side
    48.84x = 3,270.27
  5. Step 5: Solve for x
    x = 3,270.27/48.84
  6. Step 6: Final answer
    x = 66.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.