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Finding the Fourth Proportional to 20,959.26, 28,924.02 and 11,527.98

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Solution

The fourth proportional to 20,959.26, 28,924.02 and 11,527.98 is: 15,908.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959.26 : 28,924.02 = 11,527.98 : x
  2. Step 2: Convert to fraction form
    20,959.26/28,924.02 = 11,527.98/x
  3. Step 3: Cross multiply
    20,959.26x = 28,924.02 × 11,527.98
  4. Step 4: Simplify right side
    20,959.26x = 333,435,524.08
  5. Step 5: Solve for x
    x = 333,435,524.08/20,959.26
  6. Step 6: Final answer
    x = 15,908.75

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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.