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Finding the Fourth Proportional to 44.42, 61.29 and 28.01

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Solution

The fourth proportional to 44.42, 61.29 and 28.01 is: 38.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.42 : 61.29 = 28.01 : x
  2. Step 2: Convert to fraction form
    44.42/61.29 = 28.01/x
  3. Step 3: Cross multiply
    44.42x = 61.29 × 28.01
  4. Step 4: Simplify right side
    44.42x = 1,716.89
  5. Step 5: Solve for x
    x = 1,716.89/44.42
  6. Step 6: Final answer
    x = 38.66

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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.