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Finding the Fourth Proportional to 8,740.64, 13,099.44 and 3,543.68

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Solution

The fourth proportional to 8,740.64, 13,099.44 and 3,543.68 is: 5,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.64 : 13,099.44 = 3,543.68 : x
  2. Step 2: Convert to fraction form
    8,740.64/13,099.44 = 3,543.68/x
  3. Step 3: Cross multiply
    8,740.64x = 13,099.44 × 3,543.68
  4. Step 4: Simplify right side
    8,740.64x = 46,420,223.54
  5. Step 5: Solve for x
    x = 46,420,223.54/8,740.64
  6. Step 6: Final answer
    x = 5,310.85

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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.