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Finding the Fourth Proportional to 927.37, 1,392.36 and 910.96

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Solution

The fourth proportional to 927.37, 1,392.36 and 910.96 is: 1,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.37 : 1,392.36 = 910.96 : x
  2. Step 2: Convert to fraction form
    927.37/1,392.36 = 910.96/x
  3. Step 3: Cross multiply
    927.37x = 1,392.36 × 910.96
  4. Step 4: Simplify right side
    927.37x = 1,268,384.27
  5. Step 5: Solve for x
    x = 1,268,384.27/927.37
  6. Step 6: Final answer
    x = 1,367.72

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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.