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Finding the Fourth Proportional to 9,893.56, 13,659.46 and 8,829.48

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Solution

The fourth proportional to 9,893.56, 13,659.46 and 8,829.48 is: 12,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.56 : 13,659.46 = 8,829.48 : x
  2. Step 2: Convert to fraction form
    9,893.56/13,659.46 = 8,829.48/x
  3. Step 3: Cross multiply
    9,893.56x = 13,659.46 × 8,829.48
  4. Step 4: Simplify right side
    9,893.56x = 120,605,928.88
  5. Step 5: Solve for x
    x = 120,605,928.88/9,893.56
  6. Step 6: Final answer
    x = 12,190.35

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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.