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Finding the Fourth Proportional to 8,509.26, 11,741.97 and 7,882.32

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Solution

The fourth proportional to 8,509.26, 11,741.97 and 7,882.32 is: 10,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509.26 : 11,741.97 = 7,882.32 : x
  2. Step 2: Convert to fraction form
    8,509.26/11,741.97 = 7,882.32/x
  3. Step 3: Cross multiply
    8,509.26x = 11,741.97 × 7,882.32
  4. Step 4: Simplify right side
    8,509.26x = 92,553,964.97
  5. Step 5: Solve for x
    x = 92,553,964.97/8,509.26
  6. Step 6: Final answer
    x = 10,876.85

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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.