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Finding the Fourth Proportional to 61.99, 92.96 and 36.32

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Solution

The fourth proportional to 61.99, 92.96 and 36.32 is: 54.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.99 : 92.96 = 36.32 : x
  2. Step 2: Convert to fraction form
    61.99/92.96 = 36.32/x
  3. Step 3: Cross multiply
    61.99x = 92.96 × 36.32
  4. Step 4: Simplify right side
    61.99x = 3,376.63
  5. Step 5: Solve for x
    x = 3,376.63/61.99
  6. Step 6: Final answer
    x = 54.47

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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.