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Finding the Fourth Proportional to 11,640.79, 17,446.60 and 5,799.07

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Solution

The fourth proportional to 11,640.79, 17,446.60 and 5,799.07 is: 8,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.79 : 17,446.60 = 5,799.07 : x
  2. Step 2: Convert to fraction form
    11,640.79/17,446.60 = 5,799.07/x
  3. Step 3: Cross multiply
    11,640.79x = 17,446.60 × 5,799.07
  4. Step 4: Simplify right side
    11,640.79x = 101,173,938.43
  5. Step 5: Solve for x
    x = 101,173,938.43/11,640.79
  6. Step 6: Final answer
    x = 8,691.33

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1.5x scale

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.