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Finding the Fourth Proportional to 37.92, 56.74 and 37.46

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Solution

The fourth proportional to 37.92, 56.74 and 37.46 is: 56.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.92 : 56.74 = 37.46 : x
  2. Step 2: Convert to fraction form
    37.92/56.74 = 37.46/x
  3. Step 3: Cross multiply
    37.92x = 56.74 × 37.46
  4. Step 4: Simplify right side
    37.92x = 2,125.48
  5. Step 5: Solve for x
    x = 2,125.48/37.92
  6. Step 6: Final answer
    x = 56.05

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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.