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Finding the Fourth Proportional to 8,706.38, 13,061.72 and 2,550.38

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Solution

The fourth proportional to 8,706.38, 13,061.72 and 2,550.38 is: 3,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.38 : 13,061.72 = 2,550.38 : x
  2. Step 2: Convert to fraction form
    8,706.38/13,061.72 = 2,550.38/x
  3. Step 3: Cross multiply
    8,706.38x = 13,061.72 × 2,550.38
  4. Step 4: Simplify right side
    8,706.38x = 33,312,290.52
  5. Step 5: Solve for x
    x = 33,312,290.52/8,706.38
  6. Step 6: Final answer
    x = 3,826.20

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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.