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Finding the Fourth Proportional to 20,063.72, 27,692.54 and 13,349.63

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Solution

The fourth proportional to 20,063.72, 27,692.54 and 13,349.63 is: 18,425.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.72 : 27,692.54 = 13,349.63 : x
  2. Step 2: Convert to fraction form
    20,063.72/27,692.54 = 13,349.63/x
  3. Step 3: Cross multiply
    20,063.72x = 27,692.54 × 13,349.63
  4. Step 4: Simplify right side
    20,063.72x = 369,684,957.55
  5. Step 5: Solve for x
    x = 369,684,957.55/20,063.72
  6. Step 6: Final answer
    x = 18,425.55

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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.