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Finding the Fourth Proportional to 62.67, 93.60 and 57

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Solution

The fourth proportional to 62.67, 93.60 and 57 is: 85.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.67 : 93.60 = 57 : x
  2. Step 2: Convert to fraction form
    62.67/93.60 = 57/x
  3. Step 3: Cross multiply
    62.67x = 93.60 × 57
  4. Step 4: Simplify right side
    62.67x = 5,335.20
  5. Step 5: Solve for x
    x = 5,335.20/62.67
  6. Step 6: Final answer
    x = 85.13

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.