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Finding the Fourth Proportional to 8,473.92, 12,659.16 and 6,744.48

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Solution

The fourth proportional to 8,473.92, 12,659.16 and 6,744.48 is: 10,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,473.92 : 12,659.16 = 6,744.48 : x
  2. Step 2: Convert to fraction form
    8,473.92/12,659.16 = 6,744.48/x
  3. Step 3: Cross multiply
    8,473.92x = 12,659.16 × 6,744.48
  4. Step 4: Simplify right side
    8,473.92x = 85,379,451.44
  5. Step 5: Solve for x
    x = 85,379,451.44/8,473.92
  6. Step 6: Final answer
    x = 10,075.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.