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Finding the Fourth Proportional to 8,696.16, 13,016.70 and 5,571.99

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Solution

The fourth proportional to 8,696.16, 13,016.70 and 5,571.99 is: 8,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,696.16 : 13,016.70 = 5,571.99 : x
  2. Step 2: Convert to fraction form
    8,696.16/13,016.70 = 5,571.99/x
  3. Step 3: Cross multiply
    8,696.16x = 13,016.70 × 5,571.99
  4. Step 4: Simplify right side
    8,696.16x = 72,528,922.23
  5. Step 5: Solve for x
    x = 72,528,922.23/8,696.16
  6. Step 6: Final answer
    x = 8,340.34

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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.