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Finding the Fourth Proportional to 8,618.57, 11,893.22 and 5,033.71

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Solution

The fourth proportional to 8,618.57, 11,893.22 and 5,033.71 is: 6,946.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.57 : 11,893.22 = 5,033.71 : x
  2. Step 2: Convert to fraction form
    8,618.57/11,893.22 = 5,033.71/x
  3. Step 3: Cross multiply
    8,618.57x = 11,893.22 × 5,033.71
  4. Step 4: Simplify right side
    8,618.57x = 59,867,020.45
  5. Step 5: Solve for x
    x = 59,867,020.45/8,618.57
  6. Step 6: Final answer
    x = 6,946.28

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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.