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Finding the Fourth Proportional to 16,996.58, 25,457.90 and 8,213

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Solution

The fourth proportional to 16,996.58, 25,457.90 and 8,213 is: 12,301.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,996.58 : 25,457.90 = 8,213 : x
  2. Step 2: Convert to fraction form
    16,996.58/25,457.90 = 8,213/x
  3. Step 3: Cross multiply
    16,996.58x = 25,457.90 × 8,213
  4. Step 4: Simplify right side
    16,996.58x = 209,085,732.70
  5. Step 5: Solve for x
    x = 209,085,732.70/16,996.58
  6. Step 6: Final answer
    x = 12,301.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.