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Finding the Fourth Proportional to 8,706.36, 13,061.70 and 2,550.36

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Solution

The fourth proportional to 8,706.36, 13,061.70 and 2,550.36 is: 3,826.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.36 : 13,061.70 = 2,550.36 : x
  2. Step 2: Convert to fraction form
    8,706.36/13,061.70 = 2,550.36/x
  3. Step 3: Cross multiply
    8,706.36x = 13,061.70 × 2,550.36
  4. Step 4: Simplify right side
    8,706.36x = 33,312,037.21
  5. Step 5: Solve for x
    x = 33,312,037.21/8,706.36
  6. Step 6: Final answer
    x = 3,826.17

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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.