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Finding the Fourth Proportional to 67.26, 92.70 and 46.50

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Solution

The fourth proportional to 67.26, 92.70 and 46.50 is: 64.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.26 : 92.70 = 46.50 : x
  2. Step 2: Convert to fraction form
    67.26/92.70 = 46.50/x
  3. Step 3: Cross multiply
    67.26x = 92.70 × 46.50
  4. Step 4: Simplify right side
    67.26x = 4,310.55
  5. Step 5: Solve for x
    x = 4,310.55/67.26
  6. Step 6: Final answer
    x = 64.09

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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.