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Finding the Fourth Proportional to 50,643.96, 75,974.85 and 19,476.78

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Solution

The fourth proportional to 50,643.96, 75,974.85 and 19,476.78 is: 29,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,643.96 : 75,974.85 = 19,476.78 : x
  2. Step 2: Convert to fraction form
    50,643.96/75,974.85 = 19,476.78/x
  3. Step 3: Cross multiply
    50,643.96x = 75,974.85 × 19,476.78
  4. Step 4: Simplify right side
    50,643.96x = 1,479,745,438.98
  5. Step 5: Solve for x
    x = 1,479,745,438.98/50,643.96
  6. Step 6: Final answer
    x = 29,218.60

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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.