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Finding the Fourth Proportional to 43.44, 59.96 and 31.16

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Solution

The fourth proportional to 43.44, 59.96 and 31.16 is: 43.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.44 : 59.96 = 31.16 : x
  2. Step 2: Convert to fraction form
    43.44/59.96 = 31.16/x
  3. Step 3: Cross multiply
    43.44x = 59.96 × 31.16
  4. Step 4: Simplify right side
    43.44x = 1,868.13
  5. Step 5: Solve for x
    x = 1,868.13/43.44
  6. Step 6: Final answer
    x = 43.00

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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.