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Finding the Fourth Proportional to 17,784.66, 26,687.25 and 7,924.89

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Solution

The fourth proportional to 17,784.66, 26,687.25 and 7,924.89 is: 11,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,784.66 : 26,687.25 = 7,924.89 : x
  2. Step 2: Convert to fraction form
    17,784.66/26,687.25 = 7,924.89/x
  3. Step 3: Cross multiply
    17,784.66x = 26,687.25 × 7,924.89
  4. Step 4: Simplify right side
    17,784.66x = 211,493,520.65
  5. Step 5: Solve for x
    x = 211,493,520.65/17,784.66
  6. Step 6: Final answer
    x = 11,891.91

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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.