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Finding the Fourth Proportional to 61.56, 92.44 and 49.41

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Solution

The fourth proportional to 61.56, 92.44 and 49.41 is: 74.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.56 : 92.44 = 49.41 : x
  2. Step 2: Convert to fraction form
    61.56/92.44 = 49.41/x
  3. Step 3: Cross multiply
    61.56x = 92.44 × 49.41
  4. Step 4: Simplify right side
    61.56x = 4,567.52
  5. Step 5: Solve for x
    x = 4,567.52/61.56
  6. Step 6: Final answer
    x = 74.20

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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.