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Finding the Fourth Proportional to 8,009.28, 11,974.48 and 6,790.32

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Solution

The fourth proportional to 8,009.28, 11,974.48 and 6,790.32 is: 10,152.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,009.28 : 11,974.48 = 6,790.32 : x
  2. Step 2: Convert to fraction form
    8,009.28/11,974.48 = 6,790.32/x
  3. Step 3: Cross multiply
    8,009.28x = 11,974.48 × 6,790.32
  4. Step 4: Simplify right side
    8,009.28x = 81,310,551.03
  5. Step 5: Solve for x
    x = 81,310,551.03/8,009.28
  6. Step 6: Final answer
    x = 10,152.04

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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.