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Finding the Fourth Proportional to 6,658.96, 9,189.56 and 3,674.88

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Solution

The fourth proportional to 6,658.96, 9,189.56 and 3,674.88 is: 5,071.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,658.96 : 9,189.56 = 3,674.88 : x
  2. Step 2: Convert to fraction form
    6,658.96/9,189.56 = 3,674.88/x
  3. Step 3: Cross multiply
    6,658.96x = 9,189.56 × 3,674.88
  4. Step 4: Simplify right side
    6,658.96x = 33,770,530.25
  5. Step 5: Solve for x
    x = 33,770,530.25/6,658.96
  6. Step 6: Final answer
    x = 5,071.44

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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.