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Finding the Fourth Proportional to 5,792.08, 7,992.96 and 3,139.44

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Solution

The fourth proportional to 5,792.08, 7,992.96 and 3,139.44 is: 4,332.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.08 : 7,992.96 = 3,139.44 : x
  2. Step 2: Convert to fraction form
    5,792.08/7,992.96 = 3,139.44/x
  3. Step 3: Cross multiply
    5,792.08x = 7,992.96 × 3,139.44
  4. Step 4: Simplify right side
    5,792.08x = 25,093,418.34
  5. Step 5: Solve for x
    x = 25,093,418.34/5,792.08
  6. Step 6: Final answer
    x = 4,332.37

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1.5x scale

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.