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Finding the Fourth Proportional to 4,892.92, 6,740.83 and 4,003.54

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Solution

The fourth proportional to 4,892.92, 6,740.83 and 4,003.54 is: 5,515.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,892.92 : 6,740.83 = 4,003.54 : x
  2. Step 2: Convert to fraction form
    4,892.92/6,740.83 = 4,003.54/x
  3. Step 3: Cross multiply
    4,892.92x = 6,740.83 × 4,003.54
  4. Step 4: Simplify right side
    4,892.92x = 26,987,170.69
  5. Step 5: Solve for x
    x = 26,987,170.69/4,892.92
  6. Step 6: Final answer
    x = 5,515.56

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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.