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Finding the Fourth Proportional to 16,943.82, 25,421.01 and 7,591.83

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Solution

The fourth proportional to 16,943.82, 25,421.01 and 7,591.83 is: 11,390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,943.82 : 25,421.01 = 7,591.83 : x
  2. Step 2: Convert to fraction form
    16,943.82/25,421.01 = 7,591.83/x
  3. Step 3: Cross multiply
    16,943.82x = 25,421.01 × 7,591.83
  4. Step 4: Simplify right side
    16,943.82x = 192,991,986.35
  5. Step 5: Solve for x
    x = 192,991,986.35/16,943.82
  6. Step 6: Final answer
    x = 11,390.11

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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.