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Finding the Fourth Proportional to 34.60, 47.48 and 33.32

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Solution

The fourth proportional to 34.60, 47.48 and 33.32 is: 45.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    34.60 : 47.48 = 33.32 : x
  2. Step 2: Convert to fraction form
    34.60/47.48 = 33.32/x
  3. Step 3: Cross multiply
    34.60x = 47.48 × 33.32
  4. Step 4: Simplify right side
    34.60x = 1,581.75
  5. Step 5: Solve for x
    x = 1,581.75/34.60
  6. Step 6: Final answer
    x = 45.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.