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Finding the Fourth Proportional to 8,896.73, 12,276.63 and 4,917.20

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Solution

The fourth proportional to 8,896.73, 12,276.63 and 4,917.20 is: 6,785.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.73 : 12,276.63 = 4,917.20 : x
  2. Step 2: Convert to fraction form
    8,896.73/12,276.63 = 4,917.20/x
  3. Step 3: Cross multiply
    8,896.73x = 12,276.63 × 4,917.20
  4. Step 4: Simplify right side
    8,896.73x = 60,366,583.65
  5. Step 5: Solve for x
    x = 60,366,583.65/8,896.73
  6. Step 6: Final answer
    x = 6,785.26

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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.