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Finding the Fourth Proportional to 16,874.10, 25,326.63 and 8,559.90

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Solution

The fourth proportional to 16,874.10, 25,326.63 and 8,559.90 is: 12,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874.10 : 25,326.63 = 8,559.90 : x
  2. Step 2: Convert to fraction form
    16,874.10/25,326.63 = 8,559.90/x
  3. Step 3: Cross multiply
    16,874.10x = 25,326.63 × 8,559.90
  4. Step 4: Simplify right side
    16,874.10x = 216,793,420.14
  5. Step 5: Solve for x
    x = 216,793,420.14/16,874.10
  6. Step 6: Final answer
    x = 12,847.70

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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.