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Finding the Fourth Proportional to 50,957.91, 76,426.49 and 19,356.91

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Solution

The fourth proportional to 50,957.91, 76,426.49 and 19,356.91 is: 29,031.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,957.91 : 76,426.49 = 19,356.91 : x
  2. Step 2: Convert to fraction form
    50,957.91/76,426.49 = 19,356.91/x
  3. Step 3: Cross multiply
    50,957.91x = 76,426.49 × 19,356.91
  4. Step 4: Simplify right side
    50,957.91x = 1,479,380,545.87
  5. Step 5: Solve for x
    x = 1,479,380,545.87/50,957.91
  6. Step 6: Final answer
    x = 29,031.42

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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.