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Finding the Fourth Proportional to 8,734.43, 13,094.73 and 8,139.33

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Solution

The fourth proportional to 8,734.43, 13,094.73 and 8,139.33 is: 12,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,734.43 : 13,094.73 = 8,139.33 : x
  2. Step 2: Convert to fraction form
    8,734.43/13,094.73 = 8,139.33/x
  3. Step 3: Cross multiply
    8,734.43x = 13,094.73 × 8,139.33
  4. Step 4: Simplify right side
    8,734.43x = 106,582,328.73
  5. Step 5: Solve for x
    x = 106,582,328.73/8,734.43
  6. Step 6: Final answer
    x = 12,202.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.