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Finding the Fourth Proportional to 63.50, 95.25 and 46.50

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Solution

The fourth proportional to 63.50, 95.25 and 46.50 is: 69.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.50 : 95.25 = 46.50 : x
  2. Step 2: Convert to fraction form
    63.50/95.25 = 46.50/x
  3. Step 3: Cross multiply
    63.50x = 95.25 × 46.50
  4. Step 4: Simplify right side
    63.50x = 4,429.13
  5. Step 5: Solve for x
    x = 4,429.13/63.50
  6. Step 6: Final answer
    x = 69.75

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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.