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Finding the Fourth Proportional to 6,666.70, 9,200.12 and 3,682.48

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Solution

The fourth proportional to 6,666.70, 9,200.12 and 3,682.48 is: 5,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,666.70 : 9,200.12 = 3,682.48 : x
  2. Step 2: Convert to fraction form
    6,666.70/9,200.12 = 3,682.48/x
  3. Step 3: Cross multiply
    6,666.70x = 9,200.12 × 3,682.48
  4. Step 4: Simplify right side
    6,666.70x = 33,879,257.90
  5. Step 5: Solve for x
    x = 33,879,257.90/6,666.70
  6. Step 6: Final answer
    x = 5,081.86

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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.