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Finding the Fourth Proportional to 16,991.62, 25,494.18 and 7,629.10

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Solution

The fourth proportional to 16,991.62, 25,494.18 and 7,629.10 is: 11,446.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.62 : 25,494.18 = 7,629.10 : x
  2. Step 2: Convert to fraction form
    16,991.62/25,494.18 = 7,629.10/x
  3. Step 3: Cross multiply
    16,991.62x = 25,494.18 × 7,629.10
  4. Step 4: Simplify right side
    16,991.62x = 194,497,648.64
  5. Step 5: Solve for x
    x = 194,497,648.64/16,991.62
  6. Step 6: Final answer
    x = 11,446.68

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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.