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Finding the Fourth Proportional to 10,890.52, 15,020.84 and 6,853.41

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Solution

The fourth proportional to 10,890.52, 15,020.84 and 6,853.41 is: 9,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,890.52 : 15,020.84 = 6,853.41 : x
  2. Step 2: Convert to fraction form
    10,890.52/15,020.84 = 6,853.41/x
  3. Step 3: Cross multiply
    10,890.52x = 15,020.84 × 6,853.41
  4. Step 4: Simplify right side
    10,890.52x = 102,943,992.20
  5. Step 5: Solve for x
    x = 102,943,992.20/10,890.52
  6. Step 6: Final answer
    x = 9,452.63

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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.