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Finding the Fourth Proportional to 32.43, 44.74 and 25.89

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Solution

The fourth proportional to 32.43, 44.74 and 25.89 is: 35.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.43 : 44.74 = 25.89 : x
  2. Step 2: Convert to fraction form
    32.43/44.74 = 25.89/x
  3. Step 3: Cross multiply
    32.43x = 44.74 × 25.89
  4. Step 4: Simplify right side
    32.43x = 1,158.32
  5. Step 5: Solve for x
    x = 1,158.32/32.43
  6. Step 6: Final answer
    x = 35.72

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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.