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Finding the Fourth Proportional to 75.53, 104.22 and 46.44

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Solution

The fourth proportional to 75.53, 104.22 and 46.44 is: 64.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.53 : 104.22 = 46.44 : x
  2. Step 2: Convert to fraction form
    75.53/104.22 = 46.44/x
  3. Step 3: Cross multiply
    75.53x = 104.22 × 46.44
  4. Step 4: Simplify right side
    75.53x = 4,839.98
  5. Step 5: Solve for x
    x = 4,839.98/75.53
  6. Step 6: Final answer
    x = 64.08

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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.