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Finding the Fourth Proportional to 8,005.72, 11,047.71 and 4,469.26

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Solution

The fourth proportional to 8,005.72, 11,047.71 and 4,469.26 is: 6,167.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.72 : 11,047.71 = 4,469.26 : x
  2. Step 2: Convert to fraction form
    8,005.72/11,047.71 = 4,469.26/x
  3. Step 3: Cross multiply
    8,005.72x = 11,047.71 × 4,469.26
  4. Step 4: Simplify right side
    8,005.72x = 49,375,088.39
  5. Step 5: Solve for x
    x = 49,375,088.39/8,005.72
  6. Step 6: Final answer
    x = 6,167.48

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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.