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Finding the Fourth Proportional to 10,959.88, 16,441.80 and 3,169.12

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Solution

The fourth proportional to 10,959.88, 16,441.80 and 3,169.12 is: 4,754.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.88 : 16,441.80 = 3,169.12 : x
  2. Step 2: Convert to fraction form
    10,959.88/16,441.80 = 3,169.12/x
  3. Step 3: Cross multiply
    10,959.88x = 16,441.80 × 3,169.12
  4. Step 4: Simplify right side
    10,959.88x = 52,106,037.22
  5. Step 5: Solve for x
    x = 52,106,037.22/10,959.88
  6. Step 6: Final answer
    x = 4,754.25

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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.