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Finding the Fourth Proportional to 37.41, 51.60 and 31.26

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Solution

The fourth proportional to 37.41, 51.60 and 31.26 is: 43.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.41 : 51.60 = 31.26 : x
  2. Step 2: Convert to fraction form
    37.41/51.60 = 31.26/x
  3. Step 3: Cross multiply
    37.41x = 51.60 × 31.26
  4. Step 4: Simplify right side
    37.41x = 1,613.02
  5. Step 5: Solve for x
    x = 1,613.02/37.41
  6. Step 6: Final answer
    x = 43.12

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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.