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Finding the Fourth Proportional to 11,952.87, 16,494.21 and 6,647.49

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Solution

The fourth proportional to 11,952.87, 16,494.21 and 6,647.49 is: 9,173.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952.87 : 16,494.21 = 6,647.49 : x
  2. Step 2: Convert to fraction form
    11,952.87/16,494.21 = 6,647.49/x
  3. Step 3: Cross multiply
    11,952.87x = 16,494.21 × 6,647.49
  4. Step 4: Simplify right side
    11,952.87x = 109,645,096.03
  5. Step 5: Solve for x
    x = 109,645,096.03/11,952.87
  6. Step 6: Final answer
    x = 9,173.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.