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Finding the Fourth Proportional to 11,081.71, 16,642.38 and 10,635.76

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Solution

The fourth proportional to 11,081.71, 16,642.38 and 10,635.76 is: 15,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.71 : 16,642.38 = 10,635.76 : x
  2. Step 2: Convert to fraction form
    11,081.71/16,642.38 = 10,635.76/x
  3. Step 3: Cross multiply
    11,081.71x = 16,642.38 × 10,635.76
  4. Step 4: Simplify right side
    11,081.71x = 177,004,359.51
  5. Step 5: Solve for x
    x = 177,004,359.51/11,081.71
  6. Step 6: Final answer
    x = 15,972.66

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.