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Finding the Fourth Proportional to 11,242.80, 16,850.52 and 7,956.84

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Solution

The fourth proportional to 11,242.80, 16,850.52 and 7,956.84 is: 11,925.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,242.80 : 16,850.52 = 7,956.84 : x
  2. Step 2: Convert to fraction form
    11,242.80/16,850.52 = 7,956.84/x
  3. Step 3: Cross multiply
    11,242.80x = 16,850.52 × 7,956.84
  4. Step 4: Simplify right side
    11,242.80x = 134,076,891.56
  5. Step 5: Solve for x
    x = 134,076,891.56/11,242.80
  6. Step 6: Final answer
    x = 11,925.58

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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.