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Finding the Fourth Proportional to 16,871.88, 25,289.82 and 8,558.04

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Solution

The fourth proportional to 16,871.88, 25,289.82 and 8,558.04 is: 12,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.88 : 25,289.82 = 8,558.04 : x
  2. Step 2: Convert to fraction form
    16,871.88/25,289.82 = 8,558.04/x
  3. Step 3: Cross multiply
    16,871.88x = 25,289.82 × 8,558.04
  4. Step 4: Simplify right side
    16,871.88x = 216,431,291.15
  5. Step 5: Solve for x
    x = 216,431,291.15/16,871.88
  6. Step 6: Final answer
    x = 12,827.93

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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.