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Finding the Fourth Proportional to 8,168.25, 11,272.19 and 4,442.25

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Solution

The fourth proportional to 8,168.25, 11,272.19 and 4,442.25 is: 6,130.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.25 : 11,272.19 = 4,442.25 : x
  2. Step 2: Convert to fraction form
    8,168.25/11,272.19 = 4,442.25/x
  3. Step 3: Cross multiply
    8,168.25x = 11,272.19 × 4,442.25
  4. Step 4: Simplify right side
    8,168.25x = 50,073,863.82
  5. Step 5: Solve for x
    x = 50,073,863.82/8,168.25
  6. Step 6: Final answer
    x = 6,130.31

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Half scale
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Double scale
Find fourth proportional to 8,169.25, 11,273.57 and 4,443.25
Similar ratio
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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.