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Finding the Fourth Proportional to 8,896.97, 12,276.75 and 4,917.54

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Solution

The fourth proportional to 8,896.97, 12,276.75 and 4,917.54 is: 6,785.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.97 : 12,276.75 = 4,917.54 : x
  2. Step 2: Convert to fraction form
    8,896.97/12,276.75 = 4,917.54/x
  3. Step 3: Cross multiply
    8,896.97x = 12,276.75 × 4,917.54
  4. Step 4: Simplify right side
    8,896.97x = 60,371,409.20
  5. Step 5: Solve for x
    x = 60,371,409.20/8,896.97
  6. Step 6: Final answer
    x = 6,785.62

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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.