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Finding the Fourth Proportional to 5,795.43, 7,997.76 and 3,142.86

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Solution

The fourth proportional to 5,795.43, 7,997.76 and 3,142.86 is: 4,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,795.43 : 7,997.76 = 3,142.86 : x
  2. Step 2: Convert to fraction form
    5,795.43/7,997.76 = 3,142.86/x
  3. Step 3: Cross multiply
    5,795.43x = 7,997.76 × 3,142.86
  4. Step 4: Simplify right side
    5,795.43x = 25,135,839.99
  5. Step 5: Solve for x
    x = 25,135,839.99/5,795.43
  6. Step 6: Final answer
    x = 4,337.18

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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.