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Finding the Fourth Proportional to 8,940.92, 13,407.76 and 2,699

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Solution

The fourth proportional to 8,940.92, 13,407.76 and 2,699 is: 4,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.92 : 13,407.76 = 2,699 : x
  2. Step 2: Convert to fraction form
    8,940.92/13,407.76 = 2,699/x
  3. Step 3: Cross multiply
    8,940.92x = 13,407.76 × 2,699
  4. Step 4: Simplify right side
    8,940.92x = 36,187,544.24
  5. Step 5: Solve for x
    x = 36,187,544.24/8,940.92
  6. Step 6: Final answer
    x = 4,047.41

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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.