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Finding the Fourth Proportional to 13,345.92, 20,012.07 and 4,458.05

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Solution

The fourth proportional to 13,345.92, 20,012.07 and 4,458.05 is: 6,684.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.92 : 20,012.07 = 4,458.05 : x
  2. Step 2: Convert to fraction form
    13,345.92/20,012.07 = 4,458.05/x
  3. Step 3: Cross multiply
    13,345.92x = 20,012.07 × 4,458.05
  4. Step 4: Simplify right side
    13,345.92x = 89,214,708.60
  5. Step 5: Solve for x
    x = 89,214,708.60/13,345.92
  6. Step 6: Final answer
    x = 6,684.79

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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.