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Finding the Fourth Proportional to 5,645.04, 7,791.02 and 3,520.92

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Solution

The fourth proportional to 5,645.04, 7,791.02 and 3,520.92 is: 4,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.04 : 7,791.02 = 3,520.92 : x
  2. Step 2: Convert to fraction form
    5,645.04/7,791.02 = 3,520.92/x
  3. Step 3: Cross multiply
    5,645.04x = 7,791.02 × 3,520.92
  4. Step 4: Simplify right side
    5,645.04x = 27,431,558.14
  5. Step 5: Solve for x
    x = 27,431,558.14/5,645.04
  6. Step 6: Final answer
    x = 4,859.41

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Half scale
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Double scale
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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.