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Finding the Fourth Proportional to 43.92, 65.90 and 32

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Solution

The fourth proportional to 43.92, 65.90 and 32 is: 48.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.92 : 65.90 = 32 : x
  2. Step 2: Convert to fraction form
    43.92/65.90 = 32/x
  3. Step 3: Cross multiply
    43.92x = 65.90 × 32
  4. Step 4: Simplify right side
    43.92x = 2,108.80
  5. Step 5: Solve for x
    x = 2,108.80/43.92
  6. Step 6: Final answer
    x = 48.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.