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Finding the Fourth Proportional to 59.01, 81.32 and 48.69

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Solution

The fourth proportional to 59.01, 81.32 and 48.69 is: 67.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.01 : 81.32 = 48.69 : x
  2. Step 2: Convert to fraction form
    59.01/81.32 = 48.69/x
  3. Step 3: Cross multiply
    59.01x = 81.32 × 48.69
  4. Step 4: Simplify right side
    59.01x = 3,959.23
  5. Step 5: Solve for x
    x = 3,959.23/59.01
  6. Step 6: Final answer
    x = 67.09

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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.