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Finding the Fourth Proportional to 13,573.12, 18,730.68 and 7,604.74

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Solution

The fourth proportional to 13,573.12, 18,730.68 and 7,604.74 is: 10,494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573.12 : 18,730.68 = 7,604.74 : x
  2. Step 2: Convert to fraction form
    13,573.12/18,730.68 = 7,604.74/x
  3. Step 3: Cross multiply
    13,573.12x = 18,730.68 × 7,604.74
  4. Step 4: Simplify right side
    13,573.12x = 142,441,951.42
  5. Step 5: Solve for x
    x = 142,441,951.42/13,573.12
  6. Step 6: Final answer
    x = 10,494.41

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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.