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Finding the Fourth Proportional to 34.49, 47.59 and 29.92

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Solution

The fourth proportional to 34.49, 47.59 and 29.92 is: 41.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.49 : 47.59 = 29.92 : x
  2. Step 2: Convert to fraction form
    34.49/47.59 = 29.92/x
  3. Step 3: Cross multiply
    34.49x = 47.59 × 29.92
  4. Step 4: Simplify right side
    34.49x = 1,423.89
  5. Step 5: Solve for x
    x = 1,423.89/34.49
  6. Step 6: Final answer
    x = 41.28

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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.