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Finding the Fourth Proportional to 8,969.68, 13,454.52 and 6,481.36

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Solution

The fourth proportional to 8,969.68, 13,454.52 and 6,481.36 is: 9,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.68 : 13,454.52 = 6,481.36 : x
  2. Step 2: Convert to fraction form
    8,969.68/13,454.52 = 6,481.36/x
  3. Step 3: Cross multiply
    8,969.68x = 13,454.52 × 6,481.36
  4. Step 4: Simplify right side
    8,969.68x = 87,203,554.11
  5. Step 5: Solve for x
    x = 87,203,554.11/8,969.68
  6. Step 6: Final answer
    x = 9,722.04

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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.