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Finding the Fourth Proportional to 8,562.63, 12,845.17 and 2,640.01

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Solution

The fourth proportional to 8,562.63, 12,845.17 and 2,640.01 is: 3,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.63 : 12,845.17 = 2,640.01 : x
  2. Step 2: Convert to fraction form
    8,562.63/12,845.17 = 2,640.01/x
  3. Step 3: Cross multiply
    8,562.63x = 12,845.17 × 2,640.01
  4. Step 4: Simplify right side
    8,562.63x = 33,911,357.67
  5. Step 5: Solve for x
    x = 33,911,357.67/8,562.63
  6. Step 6: Final answer
    x = 3,960.39

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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.