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Finding the Fourth Proportional to 17,169.75, 25,751.57 and 7,807.59

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Solution

The fourth proportional to 17,169.75, 25,751.57 and 7,807.59 is: 11,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,169.75 : 25,751.57 = 7,807.59 : x
  2. Step 2: Convert to fraction form
    17,169.75/25,751.57 = 7,807.59/x
  3. Step 3: Cross multiply
    17,169.75x = 25,751.57 × 7,807.59
  4. Step 4: Simplify right side
    17,169.75x = 201,057,661.38
  5. Step 5: Solve for x
    x = 201,057,661.38/17,169.75
  6. Step 6: Final answer
    x = 11,709.99

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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.