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Finding the Fourth Proportional to 8,567.91, 12,859.16 and 3,377.43

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Solution

The fourth proportional to 8,567.91, 12,859.16 and 3,377.43 is: 5,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.91 : 12,859.16 = 3,377.43 : x
  2. Step 2: Convert to fraction form
    8,567.91/12,859.16 = 3,377.43/x
  3. Step 3: Cross multiply
    8,567.91x = 12,859.16 × 3,377.43
  4. Step 4: Simplify right side
    8,567.91x = 43,430,895.87
  5. Step 5: Solve for x
    x = 43,430,895.87/8,567.91
  6. Step 6: Final answer
    x = 5,069.02

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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.