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Finding the Fourth Proportional to 8,493.83, 11,721.26 and 4,716.87

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Solution

The fourth proportional to 8,493.83, 11,721.26 and 4,716.87 is: 6,509.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.83 : 11,721.26 = 4,716.87 : x
  2. Step 2: Convert to fraction form
    8,493.83/11,721.26 = 4,716.87/x
  3. Step 3: Cross multiply
    8,493.83x = 11,721.26 × 4,716.87
  4. Step 4: Simplify right side
    8,493.83x = 55,287,636.07
  5. Step 5: Solve for x
    x = 55,287,636.07/8,493.83
  6. Step 6: Final answer
    x = 6,509.16

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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.