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Finding the Fourth Proportional to 8,896.25, 12,276.81 and 4,917.26

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Solution

The fourth proportional to 8,896.25, 12,276.81 and 4,917.26 is: 6,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.25 : 12,276.81 = 4,917.26 : x
  2. Step 2: Convert to fraction form
    8,896.25/12,276.81 = 4,917.26/x
  3. Step 3: Cross multiply
    8,896.25x = 12,276.81 × 4,917.26
  4. Step 4: Simplify right side
    8,896.25x = 60,368,205.36
  5. Step 5: Solve for x
    x = 60,368,205.36/8,896.25
  6. Step 6: Final answer
    x = 6,785.81

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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.