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Finding the Fourth Proportional to 8,883.28, 12,252.56 and 6,231.28

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Solution

The fourth proportional to 8,883.28, 12,252.56 and 6,231.28 is: 8,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.28 : 12,252.56 = 6,231.28 : x
  2. Step 2: Convert to fraction form
    8,883.28/12,252.56 = 6,231.28/x
  3. Step 3: Cross multiply
    8,883.28x = 12,252.56 × 6,231.28
  4. Step 4: Simplify right side
    8,883.28x = 76,349,132.08
  5. Step 5: Solve for x
    x = 76,349,132.08/8,883.28
  6. Step 6: Final answer
    x = 8,594.70

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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.