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Finding the Fourth Proportional to 8,493.53, 11,720.67 and 4,716.93

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Solution

The fourth proportional to 8,493.53, 11,720.67 and 4,716.93 is: 6,509.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,493.53 : 11,720.67 = 4,716.93 : x
  2. Step 2: Convert to fraction form
    8,493.53/11,720.67 = 4,716.93/x
  3. Step 3: Cross multiply
    8,493.53x = 11,720.67 × 4,716.93
  4. Step 4: Simplify right side
    8,493.53x = 55,285,579.94
  5. Step 5: Solve for x
    x = 55,285,579.94/8,493.53
  6. Step 6: Final answer
    x = 6,509.14

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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.