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Finding the Fourth Proportional to 10,843.60, 16,241.10 and 8,899.60

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Solution

The fourth proportional to 10,843.60, 16,241.10 and 8,899.60 is: 13,329.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,843.60 : 16,241.10 = 8,899.60 : x
  2. Step 2: Convert to fraction form
    10,843.60/16,241.10 = 8,899.60/x
  3. Step 3: Cross multiply
    10,843.60x = 16,241.10 × 8,899.60
  4. Step 4: Simplify right side
    10,843.60x = 144,539,293.56
  5. Step 5: Solve for x
    x = 144,539,293.56/10,843.60
  6. Step 6: Final answer
    x = 13,329.46

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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.