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Finding the Fourth Proportional to 73.10, 100.87 and 59.33

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Solution

The fourth proportional to 73.10, 100.87 and 59.33 is: 81.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.10 : 100.87 = 59.33 : x
  2. Step 2: Convert to fraction form
    73.10/100.87 = 59.33/x
  3. Step 3: Cross multiply
    73.10x = 100.87 × 59.33
  4. Step 4: Simplify right side
    73.10x = 5,984.72
  5. Step 5: Solve for x
    x = 5,984.72/73.10
  6. Step 6: Final answer
    x = 81.87

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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.