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Finding the Fourth Proportional to 82.67, 124.07 and 46.67

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Solution

The fourth proportional to 82.67, 124.07 and 46.67 is: 70.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82.67 : 124.07 = 46.67 : x
  2. Step 2: Convert to fraction form
    82.67/124.07 = 46.67/x
  3. Step 3: Cross multiply
    82.67x = 124.07 × 46.67
  4. Step 4: Simplify right side
    82.67x = 5,790.35
  5. Step 5: Solve for x
    x = 5,790.35/82.67
  6. Step 6: Final answer
    x = 70.04

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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.