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Finding the Fourth Proportional to 12,675.19, 19,012.79 and 3,441.19

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Solution

The fourth proportional to 12,675.19, 19,012.79 and 3,441.19 is: 5,161.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,675.19 : 19,012.79 = 3,441.19 : x
  2. Step 2: Convert to fraction form
    12,675.19/19,012.79 = 3,441.19/x
  3. Step 3: Cross multiply
    12,675.19x = 19,012.79 × 3,441.19
  4. Step 4: Simplify right side
    12,675.19x = 65,426,558.08
  5. Step 5: Solve for x
    x = 65,426,558.08/12,675.19
  6. Step 6: Final answer
    x = 5,161.78

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Similar ratio
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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.