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Finding the Fourth Proportional to 48.96, 73.48 and 32.96

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Solution

The fourth proportional to 48.96, 73.48 and 32.96 is: 49.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.96 : 73.48 = 32.96 : x
  2. Step 2: Convert to fraction form
    48.96/73.48 = 32.96/x
  3. Step 3: Cross multiply
    48.96x = 73.48 × 32.96
  4. Step 4: Simplify right side
    48.96x = 2,421.90
  5. Step 5: Solve for x
    x = 2,421.90/48.96
  6. Step 6: Final answer
    x = 49.47

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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.