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Finding the Fourth Proportional to 11,829.87, 16,326.48 and 8,840.56

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Solution

The fourth proportional to 11,829.87, 16,326.48 and 8,840.56 is: 12,200.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.87 : 16,326.48 = 8,840.56 : x
  2. Step 2: Convert to fraction form
    11,829.87/16,326.48 = 8,840.56/x
  3. Step 3: Cross multiply
    11,829.87x = 16,326.48 × 8,840.56
  4. Step 4: Simplify right side
    11,829.87x = 144,335,226.03
  5. Step 5: Solve for x
    x = 144,335,226.03/11,829.87
  6. Step 6: Final answer
    x = 12,200.91

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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.