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Finding the Fourth Proportional to 11,067.70, 16,601.55 and 7,357.90

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Solution

The fourth proportional to 11,067.70, 16,601.55 and 7,357.90 is: 11,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.70 : 16,601.55 = 7,357.90 : x
  2. Step 2: Convert to fraction form
    11,067.70/16,601.55 = 7,357.90/x
  3. Step 3: Cross multiply
    11,067.70x = 16,601.55 × 7,357.90
  4. Step 4: Simplify right side
    11,067.70x = 122,152,544.75
  5. Step 5: Solve for x
    x = 122,152,544.75/11,067.70
  6. Step 6: Final answer
    x = 11,036.85

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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.