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Finding the Fourth Proportional to 92, 126.99 and 59.25

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Solution

The fourth proportional to 92, 126.99 and 59.25 is: 81.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92 : 126.99 = 59.25 : x
  2. Step 2: Convert to fraction form
    92/126.99 = 59.25/x
  3. Step 3: Cross multiply
    92x = 126.99 × 59.25
  4. Step 4: Simplify right side
    92x = 7,524.16
  5. Step 5: Solve for x
    x = 7,524.16/92
  6. Step 6: Final answer
    x = 81.78

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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.