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Finding the Fourth Proportional to 61.23, 91.63 and 44.14

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Solution

The fourth proportional to 61.23, 91.63 and 44.14 is: 66.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61.23 : 91.63 = 44.14 : x
  2. Step 2: Convert to fraction form
    61.23/91.63 = 44.14/x
  3. Step 3: Cross multiply
    61.23x = 91.63 × 44.14
  4. Step 4: Simplify right side
    61.23x = 4,044.47
  5. Step 5: Solve for x
    x = 4,044.47/61.23
  6. Step 6: Final answer
    x = 66.06

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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.