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Finding the Fourth Proportional to 25.92, 35.70 and 23.76

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Solution

The fourth proportional to 25.92, 35.70 and 23.76 is: 32.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    25.92 : 35.70 = 23.76 : x
  2. Step 2: Convert to fraction form
    25.92/35.70 = 23.76/x
  3. Step 3: Cross multiply
    25.92x = 35.70 × 23.76
  4. Step 4: Simplify right side
    25.92x = 848.23
  5. Step 5: Solve for x
    x = 848.23/25.92
  6. Step 6: Final answer
    x = 32.73

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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.