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Finding the Fourth Proportional to 927.06, 1,387.71 and 732.66

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Solution

The fourth proportional to 927.06, 1,387.71 and 732.66 is: 1,096.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.06 : 1,387.71 = 732.66 : x
  2. Step 2: Convert to fraction form
    927.06/1,387.71 = 732.66/x
  3. Step 3: Cross multiply
    927.06x = 1,387.71 × 732.66
  4. Step 4: Simplify right side
    927.06x = 1,016,719.61
  5. Step 5: Solve for x
    x = 1,016,719.61/927.06
  6. Step 6: Final answer
    x = 1,096.71

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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.