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Finding the Fourth Proportional to 59.94, 89.88 and 31.03

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Solution

The fourth proportional to 59.94, 89.88 and 31.03 is: 46.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.94 : 89.88 = 31.03 : x
  2. Step 2: Convert to fraction form
    59.94/89.88 = 31.03/x
  3. Step 3: Cross multiply
    59.94x = 89.88 × 31.03
  4. Step 4: Simplify right side
    59.94x = 2,788.98
  5. Step 5: Solve for x
    x = 2,788.98/59.94
  6. Step 6: Final answer
    x = 46.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.