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Finding the Fourth Proportional to 22,511.44, 31,064.88 and 13,079.26

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Solution

The fourth proportional to 22,511.44, 31,064.88 and 13,079.26 is: 18,048.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,511.44 : 31,064.88 = 13,079.26 : x
  2. Step 2: Convert to fraction form
    22,511.44/31,064.88 = 13,079.26/x
  3. Step 3: Cross multiply
    22,511.44x = 31,064.88 × 13,079.26
  4. Step 4: Simplify right side
    22,511.44x = 406,305,642.39
  5. Step 5: Solve for x
    x = 406,305,642.39/22,511.44
  6. Step 6: Final answer
    x = 18,048.85

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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.