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Finding the Fourth Proportional to 11,684.65, 17,526.97 and 2,919.56

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Solution

The fourth proportional to 11,684.65, 17,526.97 and 2,919.56 is: 4,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,684.65 : 17,526.97 = 2,919.56 : x
  2. Step 2: Convert to fraction form
    11,684.65/17,526.97 = 2,919.56/x
  3. Step 3: Cross multiply
    11,684.65x = 17,526.97 × 2,919.56
  4. Step 4: Simplify right side
    11,684.65x = 51,171,027.93
  5. Step 5: Solve for x
    x = 51,171,027.93/11,684.65
  6. Step 6: Final answer
    x = 4,379.34

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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.