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Finding the Fourth Proportional to 49.64, 74.00 and 48.33

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Solution

The fourth proportional to 49.64, 74.00 and 48.33 is: 72.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.64 : 74.00 = 48.33 : x
  2. Step 2: Convert to fraction form
    49.64/74.00 = 48.33/x
  3. Step 3: Cross multiply
    49.64x = 74.00 × 48.33
  4. Step 4: Simplify right side
    49.64x = 3,576.54
  5. Step 5: Solve for x
    x = 3,576.54/49.64
  6. Step 6: Final answer
    x = 72.06

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Why These Related Problems?

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