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Finding the Fourth Proportional to 75.88, 104.67 and 46.75

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Solution

The fourth proportional to 75.88, 104.67 and 46.75 is: 64.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75.88 : 104.67 = 46.75 : x
  2. Step 2: Convert to fraction form
    75.88/104.67 = 46.75/x
  3. Step 3: Cross multiply
    75.88x = 104.67 × 46.75
  4. Step 4: Simplify right side
    75.88x = 4,893.32
  5. Step 5: Solve for x
    x = 4,893.32/75.88
  6. Step 6: Final answer
    x = 64.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.