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Finding the Fourth Proportional to 13,891.44, 20,836.52 and 4,030.52

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Solution

The fourth proportional to 13,891.44, 20,836.52 and 4,030.52 is: 6,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.44 : 20,836.52 = 4,030.52 : x
  2. Step 2: Convert to fraction form
    13,891.44/20,836.52 = 4,030.52/x
  3. Step 3: Cross multiply
    13,891.44x = 20,836.52 × 4,030.52
  4. Step 4: Simplify right side
    13,891.44x = 83,982,010.59
  5. Step 5: Solve for x
    x = 83,982,010.59/13,891.44
  6. Step 6: Final answer
    x = 6,045.59

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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.