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Finding the Fourth Proportional to 8,751.60, 13,124.70 and 2,511.12

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Solution

The fourth proportional to 8,751.60, 13,124.70 and 2,511.12 is: 3,765.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.60 : 13,124.70 = 2,511.12 : x
  2. Step 2: Convert to fraction form
    8,751.60/13,124.70 = 2,511.12/x
  3. Step 3: Cross multiply
    8,751.60x = 13,124.70 × 2,511.12
  4. Step 4: Simplify right side
    8,751.60x = 32,957,696.66
  5. Step 5: Solve for x
    x = 32,957,696.66/8,751.60
  6. Step 6: Final answer
    x = 3,765.91

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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.