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Finding the Fourth Proportional to 56.28, 84.44 and 23.76

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Solution

The fourth proportional to 56.28, 84.44 and 23.76 is: 35.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.28 : 84.44 = 23.76 : x
  2. Step 2: Convert to fraction form
    56.28/84.44 = 23.76/x
  3. Step 3: Cross multiply
    56.28x = 84.44 × 23.76
  4. Step 4: Simplify right side
    56.28x = 2,006.18
  5. Step 5: Solve for x
    x = 2,006.18/56.28
  6. Step 6: Final answer
    x = 35.65

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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.