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Finding the Fourth Proportional to 82.33, 123.50 and 23.76

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Solution

The fourth proportional to 82.33, 123.50 and 23.76 is: 35.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.33 : 123.50 = 23.76 : x
  2. Step 2: Convert to fraction form
    82.33/123.50 = 23.76/x
  3. Step 3: Cross multiply
    82.33x = 123.50 × 23.76
  4. Step 4: Simplify right side
    82.33x = 2,934.56
  5. Step 5: Solve for x
    x = 2,934.56/82.33
  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.