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Finding the Fourth Proportional to 5,792.02, 7,992.99 and 3,139.43

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Solution

The fourth proportional to 5,792.02, 7,992.99 and 3,139.43 is: 4,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,792.02 : 7,992.99 = 3,139.43 : x
  2. Step 2: Convert to fraction form
    5,792.02/7,992.99 = 3,139.43/x
  3. Step 3: Cross multiply
    5,792.02x = 7,992.99 × 3,139.43
  4. Step 4: Simplify right side
    5,792.02x = 25,093,392.63
  5. Step 5: Solve for x
    x = 25,093,392.63/5,792.02
  6. Step 6: Final answer
    x = 4,332.41

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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.