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Finding the Fourth Proportional to 6,679.89, 10,012.77 and 3,557.97

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Solution

The fourth proportional to 6,679.89, 10,012.77 and 3,557.97 is: 5,333.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,679.89 : 10,012.77 = 3,557.97 : x
  2. Step 2: Convert to fraction form
    6,679.89/10,012.77 = 3,557.97/x
  3. Step 3: Cross multiply
    6,679.89x = 10,012.77 × 3,557.97
  4. Step 4: Simplify right side
    6,679.89x = 35,625,135.28
  5. Step 5: Solve for x
    x = 35,625,135.28/6,679.89
  6. Step 6: Final answer
    x = 5,333.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.