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Finding the Fourth Proportional to 8,708.94, 13,061.85 and 2,551.50

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Solution

The fourth proportional to 8,708.94, 13,061.85 and 2,551.50 is: 3,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.94 : 13,061.85 = 2,551.50 : x
  2. Step 2: Convert to fraction form
    8,708.94/13,061.85 = 2,551.50/x
  3. Step 3: Cross multiply
    8,708.94x = 13,061.85 × 2,551.50
  4. Step 4: Simplify right side
    8,708.94x = 33,327,310.28
  5. Step 5: Solve for x
    x = 33,327,310.28/8,708.94
  6. Step 6: Final answer
    x = 3,826.79

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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.