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Finding the Fourth Proportional to 19,205.52, 26,488.26 and 13,235.82

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Solution

The fourth proportional to 19,205.52, 26,488.26 and 13,235.82 is: 18,254.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,205.52 : 26,488.26 = 13,235.82 : x
  2. Step 2: Convert to fraction form
    19,205.52/26,488.26 = 13,235.82/x
  3. Step 3: Cross multiply
    19,205.52x = 26,488.26 × 13,235.82
  4. Step 4: Simplify right side
    19,205.52x = 350,593,841.47
  5. Step 5: Solve for x
    x = 350,593,841.47/19,205.52
  6. Step 6: Final answer
    x = 18,254.85

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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.