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Finding the Fourth Proportional to 3,806.99, 5,256.09 and 2,392.62

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Solution

The fourth proportional to 3,806.99, 5,256.09 and 2,392.62 is: 3,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.99 : 5,256.09 = 2,392.62 : x
  2. Step 2: Convert to fraction form
    3,806.99/5,256.09 = 2,392.62/x
  3. Step 3: Cross multiply
    3,806.99x = 5,256.09 × 2,392.62
  4. Step 4: Simplify right side
    3,806.99x = 12,575,826.06
  5. Step 5: Solve for x
    x = 12,575,826.06/3,806.99
  6. Step 6: Final answer
    x = 3,303.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.