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Finding the Fourth Proportional to 5,072.87, 6,992.19 and 3,393.68

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Solution

The fourth proportional to 5,072.87, 6,992.19 and 3,393.68 is: 4,677.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.87 : 6,992.19 = 3,393.68 : x
  2. Step 2: Convert to fraction form
    5,072.87/6,992.19 = 3,393.68/x
  3. Step 3: Cross multiply
    5,072.87x = 6,992.19 × 3,393.68
  4. Step 4: Simplify right side
    5,072.87x = 23,729,220.40
  5. Step 5: Solve for x
    x = 23,729,220.40/5,072.87
  6. Step 6: Final answer
    x = 4,677.68

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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.