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Finding the Fourth Proportional to 56.48, 77.79 and 44.24

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Solution

The fourth proportional to 56.48, 77.79 and 44.24 is: 60.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.48 : 77.79 = 44.24 : x
  2. Step 2: Convert to fraction form
    56.48/77.79 = 44.24/x
  3. Step 3: Cross multiply
    56.48x = 77.79 × 44.24
  4. Step 4: Simplify right side
    56.48x = 3,441.43
  5. Step 5: Solve for x
    x = 3,441.43/56.48
  6. Step 6: Final answer
    x = 60.93

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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.