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Finding the Fourth Proportional to 969.94, 1,337.27 and 792.71

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Solution

The fourth proportional to 969.94, 1,337.27 and 792.71 is: 1,092.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.94 : 1,337.27 = 792.71 : x
  2. Step 2: Convert to fraction form
    969.94/1,337.27 = 792.71/x
  3. Step 3: Cross multiply
    969.94x = 1,337.27 × 792.71
  4. Step 4: Simplify right side
    969.94x = 1,060,066.68
  5. Step 5: Solve for x
    x = 1,060,066.68/969.94
  6. Step 6: Final answer
    x = 1,092.92

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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.