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Finding the Fourth Proportional to 67.64, 92.52 and 67.64

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Solution

The fourth proportional to 67.64, 92.52 and 67.64 is: 92.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.64 : 92.52 = 67.64 : x
  2. Step 2: Convert to fraction form
    67.64/92.52 = 67.64/x
  3. Step 3: Cross multiply
    67.64x = 92.52 × 67.64
  4. Step 4: Simplify right side
    67.64x = 6,258.05
  5. Step 5: Solve for x
    x = 6,258.05/67.64
  6. Step 6: Final answer
    x = 92.52

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.