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Finding the Fourth Proportional to 8,507.03, 12,760.74 and 2,664.09

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Solution

The fourth proportional to 8,507.03, 12,760.74 and 2,664.09 is: 3,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.03 : 12,760.74 = 2,664.09 : x
  2. Step 2: Convert to fraction form
    8,507.03/12,760.74 = 2,664.09/x
  3. Step 3: Cross multiply
    8,507.03x = 12,760.74 × 2,664.09
  4. Step 4: Simplify right side
    8,507.03x = 33,995,759.83
  5. Step 5: Solve for x
    x = 33,995,759.83/8,507.03
  6. Step 6: Final answer
    x = 3,996.20

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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.