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Finding the Fourth Proportional to 8,843.68, 12,201.36 and 5,115.04

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Solution

The fourth proportional to 8,843.68, 12,201.36 and 5,115.04 is: 7,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,843.68 : 12,201.36 = 5,115.04 : x
  2. Step 2: Convert to fraction form
    8,843.68/12,201.36 = 5,115.04/x
  3. Step 3: Cross multiply
    8,843.68x = 12,201.36 × 5,115.04
  4. Step 4: Simplify right side
    8,843.68x = 62,410,444.45
  5. Step 5: Solve for x
    x = 62,410,444.45/8,843.68
  6. Step 6: Final answer
    x = 7,057.07

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Half scale
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Double scale
Find fourth proportional to 8,844.68, 12,202.74 and 5,116.04
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.