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Finding the Fourth Proportional to 16,899.91, 25,350.21 and 5,213.14

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Solution

The fourth proportional to 16,899.91, 25,350.21 and 5,213.14 is: 7,819.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,899.91 : 25,350.21 = 5,213.14 : x
  2. Step 2: Convert to fraction form
    16,899.91/25,350.21 = 5,213.14/x
  3. Step 3: Cross multiply
    16,899.91x = 25,350.21 × 5,213.14
  4. Step 4: Simplify right side
    16,899.91x = 132,154,193.76
  5. Step 5: Solve for x
    x = 132,154,193.76/16,899.91
  6. Step 6: Final answer
    x = 7,819.82

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1.5x scale

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.