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Finding the Fourth Proportional to 8,575.44, 12,863.16 and 2,419.44

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Solution

The fourth proportional to 8,575.44, 12,863.16 and 2,419.44 is: 3,629.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.44 : 12,863.16 = 2,419.44 : x
  2. Step 2: Convert to fraction form
    8,575.44/12,863.16 = 2,419.44/x
  3. Step 3: Cross multiply
    8,575.44x = 12,863.16 × 2,419.44
  4. Step 4: Simplify right side
    8,575.44x = 31,121,643.83
  5. Step 5: Solve for x
    x = 31,121,643.83/8,575.44
  6. Step 6: Final answer
    x = 3,629.16

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.