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Finding the Fourth Proportional to 8,715.94, 13,067.19 and 4,329.99

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Solution

The fourth proportional to 8,715.94, 13,067.19 and 4,329.99 is: 6,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.94 : 13,067.19 = 4,329.99 : x
  2. Step 2: Convert to fraction form
    8,715.94/13,067.19 = 4,329.99/x
  3. Step 3: Cross multiply
    8,715.94x = 13,067.19 × 4,329.99
  4. Step 4: Simplify right side
    8,715.94x = 56,580,802.03
  5. Step 5: Solve for x
    x = 56,580,802.03/8,715.94
  6. Step 6: Final answer
    x = 6,491.65

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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.