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Finding the Fourth Proportional to 7,109.60, 10,665.14 and 2,730.72

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Solution

The fourth proportional to 7,109.60, 10,665.14 and 2,730.72 is: 4,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.60 : 10,665.14 = 2,730.72 : x
  2. Step 2: Convert to fraction form
    7,109.60/10,665.14 = 2,730.72/x
  3. Step 3: Cross multiply
    7,109.60x = 10,665.14 × 2,730.72
  4. Step 4: Simplify right side
    7,109.60x = 29,123,511.10
  5. Step 5: Solve for x
    x = 29,123,511.10/7,109.60
  6. Step 6: Final answer
    x = 4,096.36

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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.