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Finding the Fourth Proportional to 10,941.80, 16,431.90 and 10,596.20

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Solution

The fourth proportional to 10,941.80, 16,431.90 and 10,596.20 is: 15,912.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,941.80 : 16,431.90 = 10,596.20 : x
  2. Step 2: Convert to fraction form
    10,941.80/16,431.90 = 10,596.20/x
  3. Step 3: Cross multiply
    10,941.80x = 16,431.90 × 10,596.20
  4. Step 4: Simplify right side
    10,941.80x = 174,115,698.78
  5. Step 5: Solve for x
    x = 174,115,698.78/10,941.80
  6. Step 6: Final answer
    x = 15,912.89

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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.