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Finding the Fourth Proportional to 8,273.57, 12,407.72 and 2,725.88

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Solution

The fourth proportional to 8,273.57, 12,407.72 and 2,725.88 is: 4,087.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,273.57 : 12,407.72 = 2,725.88 : x
  2. Step 2: Convert to fraction form
    8,273.57/12,407.72 = 2,725.88/x
  3. Step 3: Cross multiply
    8,273.57x = 12,407.72 × 2,725.88
  4. Step 4: Simplify right side
    8,273.57x = 33,821,955.79
  5. Step 5: Solve for x
    x = 33,821,955.79/8,273.57
  6. Step 6: Final answer
    x = 4,087.95

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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.