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Finding the Fourth Proportional to 8,934.12, 13,481.19 and 8,574.48

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Solution

The fourth proportional to 8,934.12, 13,481.19 and 8,574.48 is: 12,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.12 : 13,481.19 = 8,574.48 : x
  2. Step 2: Convert to fraction form
    8,934.12/13,481.19 = 8,574.48/x
  3. Step 3: Cross multiply
    8,934.12x = 13,481.19 × 8,574.48
  4. Step 4: Simplify right side
    8,934.12x = 115,594,194.03
  5. Step 5: Solve for x
    x = 115,594,194.03/8,934.12
  6. Step 6: Final answer
    x = 12,938.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.