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Finding the Fourth Proportional to 49.34, 68 and 32.92

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Solution

The fourth proportional to 49.34, 68 and 32.92 is: 45.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.34 : 68 = 32.92 : x
  2. Step 2: Convert to fraction form
    49.34/68 = 32.92/x
  3. Step 3: Cross multiply
    49.34x = 68 × 32.92
  4. Step 4: Simplify right side
    49.34x = 2,238.56
  5. Step 5: Solve for x
    x = 2,238.56/49.34
  6. Step 6: Final answer
    x = 45.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.