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Finding the Fourth Proportional to 8,005.75, 11,044.18 and 5,174.01

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Solution

The fourth proportional to 8,005.75, 11,044.18 and 5,174.01 is: 7,137.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.75 : 11,044.18 = 5,174.01 : x
  2. Step 2: Convert to fraction form
    8,005.75/11,044.18 = 5,174.01/x
  3. Step 3: Cross multiply
    8,005.75x = 11,044.18 × 5,174.01
  4. Step 4: Simplify right side
    8,005.75x = 57,142,684.83
  5. Step 5: Solve for x
    x = 57,142,684.83/8,005.75
  6. Step 6: Final answer
    x = 7,137.71

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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.