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Finding the Fourth Proportional to 8,587.56, 12,883.17 and 2,664.32

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Solution

The fourth proportional to 8,587.56, 12,883.17 and 2,664.32 is: 3,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.56 : 12,883.17 = 2,664.32 : x
  2. Step 2: Convert to fraction form
    8,587.56/12,883.17 = 2,664.32/x
  3. Step 3: Cross multiply
    8,587.56x = 12,883.17 × 2,664.32
  4. Step 4: Simplify right side
    8,587.56x = 34,324,833.07
  5. Step 5: Solve for x
    x = 34,324,833.07/8,587.56
  6. Step 6: Final answer
    x = 3,997.04

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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.