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Finding the Fourth Proportional to 61.76, 92.70 and 44.66

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Solution

The fourth proportional to 61.76, 92.70 and 44.66 is: 67.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.76 : 92.70 = 44.66 : x
  2. Step 2: Convert to fraction form
    61.76/92.70 = 44.66/x
  3. Step 3: Cross multiply
    61.76x = 92.70 × 44.66
  4. Step 4: Simplify right side
    61.76x = 4,139.98
  5. Step 5: Solve for x
    x = 4,139.98/61.76
  6. Step 6: Final answer
    x = 67.03

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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.