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Finding the Fourth Proportional to 3,796.92, 5,240.16 and 2,224.80

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Solution

The fourth proportional to 3,796.92, 5,240.16 and 2,224.80 is: 3,070.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.92 : 5,240.16 = 2,224.80 : x
  2. Step 2: Convert to fraction form
    3,796.92/5,240.16 = 2,224.80/x
  3. Step 3: Cross multiply
    3,796.92x = 5,240.16 × 2,224.80
  4. Step 4: Simplify right side
    3,796.92x = 11,658,307.97
  5. Step 5: Solve for x
    x = 11,658,307.97/3,796.92
  6. Step 6: Final answer
    x = 3,070.46

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Half 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.