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Finding the Fourth Proportional to 8,489.49, 12,727.35 and 7,333.22

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Solution

The fourth proportional to 8,489.49, 12,727.35 and 7,333.22 is: 10,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,489.49 : 12,727.35 = 7,333.22 : x
  2. Step 2: Convert to fraction form
    8,489.49/12,727.35 = 7,333.22/x
  3. Step 3: Cross multiply
    8,489.49x = 12,727.35 × 7,333.22
  4. Step 4: Simplify right side
    8,489.49x = 93,332,393.93
  5. Step 5: Solve for x
    x = 93,332,393.93/8,489.49
  6. Step 6: Final answer
    x = 10,993.88

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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.