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Finding the Fourth Proportional to 8,790.44, 12,132.99 and 5,962.55

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Solution

The fourth proportional to 8,790.44, 12,132.99 and 5,962.55 is: 8,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.44 : 12,132.99 = 5,962.55 : x
  2. Step 2: Convert to fraction form
    8,790.44/12,132.99 = 5,962.55/x
  3. Step 3: Cross multiply
    8,790.44x = 12,132.99 × 5,962.55
  4. Step 4: Simplify right side
    8,790.44x = 72,343,498.86
  5. Step 5: Solve for x
    x = 72,343,498.86/8,790.44
  6. Step 6: Final answer
    x = 8,229.79

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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.