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Finding the Fourth Proportional to 13,753.74, 20,630.39 and 4,393.70

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Solution

The fourth proportional to 13,753.74, 20,630.39 and 4,393.70 is: 6,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.74 : 20,630.39 = 4,393.70 : x
  2. Step 2: Convert to fraction form
    13,753.74/20,630.39 = 4,393.70/x
  3. Step 3: Cross multiply
    13,753.74x = 20,630.39 × 4,393.70
  4. Step 4: Simplify right side
    13,753.74x = 90,643,619.42
  5. Step 5: Solve for x
    x = 90,643,619.42/13,753.74
  6. Step 6: Final answer
    x = 6,590.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.