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Finding the Fourth Proportional to 6,245.80, 8,588.10 and 5,986.60

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Solution

The fourth proportional to 6,245.80, 8,588.10 and 5,986.60 is: 8,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.80 : 8,588.10 = 5,986.60 : x
  2. Step 2: Convert to fraction form
    6,245.80/8,588.10 = 5,986.60/x
  3. Step 3: Cross multiply
    6,245.80x = 8,588.10 × 5,986.60
  4. Step 4: Simplify right side
    6,245.80x = 51,413,519.46
  5. Step 5: Solve for x
    x = 51,413,519.46/6,245.80
  6. Step 6: Final answer
    x = 8,231.69

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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.