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Finding the Fourth Proportional to 12,796.64, 19,191.07 and 4,475.11

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Solution

The fourth proportional to 12,796.64, 19,191.07 and 4,475.11 is: 6,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.64 : 19,191.07 = 4,475.11 : x
  2. Step 2: Convert to fraction form
    12,796.64/19,191.07 = 4,475.11/x
  3. Step 3: Cross multiply
    12,796.64x = 19,191.07 × 4,475.11
  4. Step 4: Simplify right side
    12,796.64x = 85,882,149.27
  5. Step 5: Solve for x
    x = 85,882,149.27/12,796.64
  6. Step 6: Final answer
    x = 6,711.30

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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.