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Finding the Fourth Proportional to 29.92, 44.96 and 26.40

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Solution

The fourth proportional to 29.92, 44.96 and 26.40 is: 39.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.92 : 44.96 = 26.40 : x
  2. Step 2: Convert to fraction form
    29.92/44.96 = 26.40/x
  3. Step 3: Cross multiply
    29.92x = 44.96 × 26.40
  4. Step 4: Simplify right side
    29.92x = 1,186.94
  5. Step 5: Solve for x
    x = 1,186.94/29.92
  6. Step 6: Final answer
    x = 39.67

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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.