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Finding the Fourth Proportional to 8,612.26, 11,884.92 and 4,886.26

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Solution

The fourth proportional to 8,612.26, 11,884.92 and 4,886.26 is: 6,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.26 : 11,884.92 = 4,886.26 : x
  2. Step 2: Convert to fraction form
    8,612.26/11,884.92 = 4,886.26/x
  3. Step 3: Cross multiply
    8,612.26x = 11,884.92 × 4,886.26
  4. Step 4: Simplify right side
    8,612.26x = 58,072,809.20
  5. Step 5: Solve for x
    x = 58,072,809.20/8,612.26
  6. Step 6: Final answer
    x = 6,743.04

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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.