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Finding the Fourth Proportional to 23.57, 32.46 and 22.43

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Solution

The fourth proportional to 23.57, 32.46 and 22.43 is: 30.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.57 : 32.46 = 22.43 : x
  2. Step 2: Convert to fraction form
    23.57/32.46 = 22.43/x
  3. Step 3: Cross multiply
    23.57x = 32.46 × 22.43
  4. Step 4: Simplify right side
    23.57x = 728.08
  5. Step 5: Solve for x
    x = 728.08/23.57
  6. Step 6: Final answer
    x = 30.89

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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.