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Finding the Fourth Proportional to 8,619.94, 11,896.80 and 5,264.68

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Solution

The fourth proportional to 8,619.94, 11,896.80 and 5,264.68 is: 7,266.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.94 : 11,896.80 = 5,264.68 : x
  2. Step 2: Convert to fraction form
    8,619.94/11,896.80 = 5,264.68/x
  3. Step 3: Cross multiply
    8,619.94x = 11,896.80 × 5,264.68
  4. Step 4: Simplify right side
    8,619.94x = 62,632,845.02
  5. Step 5: Solve for x
    x = 62,632,845.02/8,619.94
  6. Step 6: Final answer
    x = 7,266.04

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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.