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Finding the Fourth Proportional to 16,803.43, 25,220.70 and 8,489.30

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Solution

The fourth proportional to 16,803.43, 25,220.70 and 8,489.30 is: 12,741.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,803.43 : 25,220.70 = 8,489.30 : x
  2. Step 2: Convert to fraction form
    16,803.43/25,220.70 = 8,489.30/x
  3. Step 3: Cross multiply
    16,803.43x = 25,220.70 × 8,489.30
  4. Step 4: Simplify right side
    16,803.43x = 214,105,962.41
  5. Step 5: Solve for x
    x = 214,105,962.41/16,803.43
  6. Step 6: Final answer
    x = 12,741.80

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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.