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Finding the Fourth Proportional to 11,288.99, 15,578.80 and 6,253.22

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Solution

The fourth proportional to 11,288.99, 15,578.80 and 6,253.22 is: 8,629.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,288.99 : 15,578.80 = 6,253.22 : x
  2. Step 2: Convert to fraction form
    11,288.99/15,578.80 = 6,253.22/x
  3. Step 3: Cross multiply
    11,288.99x = 15,578.80 × 6,253.22
  4. Step 4: Simplify right side
    11,288.99x = 97,417,687.05
  5. Step 5: Solve for x
    x = 97,417,687.05/11,288.99
  6. Step 6: Final answer
    x = 8,629.44

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