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Finding the Fourth Proportional to 11,993.45, 16,551.08 and 6,958.90

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Solution

The fourth proportional to 11,993.45, 16,551.08 and 6,958.90 is: 9,603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,993.45 : 16,551.08 = 6,958.90 : x
  2. Step 2: Convert to fraction form
    11,993.45/16,551.08 = 6,958.90/x
  3. Step 3: Cross multiply
    11,993.45x = 16,551.08 × 6,958.90
  4. Step 4: Simplify right side
    11,993.45x = 115,177,286.63
  5. Step 5: Solve for x
    x = 115,177,286.63/11,993.45
  6. Step 6: Final answer
    x = 9,603.35

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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.