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Finding the Fourth Proportional to 67.10, 92.48 and 46.35

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Solution

The fourth proportional to 67.10, 92.48 and 46.35 is: 63.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.10 : 92.48 = 46.35 : x
  2. Step 2: Convert to fraction form
    67.10/92.48 = 46.35/x
  3. Step 3: Cross multiply
    67.10x = 92.48 × 46.35
  4. Step 4: Simplify right side
    67.10x = 4,286.22
  5. Step 5: Solve for x
    x = 4,286.22/67.10
  6. Step 6: Final answer
    x = 63.88

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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.