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Finding the Fourth Proportional to 95.36, 131.60 and 64.24

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Solution

The fourth proportional to 95.36, 131.60 and 64.24 is: 88.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.36 : 131.60 = 64.24 : x
  2. Step 2: Convert to fraction form
    95.36/131.60 = 64.24/x
  3. Step 3: Cross multiply
    95.36x = 131.60 × 64.24
  4. Step 4: Simplify right side
    95.36x = 8,453.98
  5. Step 5: Solve for x
    x = 8,453.98/95.36
  6. Step 6: Final answer
    x = 88.65

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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.