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Finding the Fourth Proportional to 71,592.98, 107,381.13 and 19,006.55

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Solution

The fourth proportional to 71,592.98, 107,381.13 and 19,006.55 is: 28,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,592.98 : 107,381.13 = 19,006.55 : x
  2. Step 2: Convert to fraction form
    71,592.98/107,381.13 = 19,006.55/x
  3. Step 3: Cross multiply
    71,592.98x = 107,381.13 × 19,006.55
  4. Step 4: Simplify right side
    71,592.98x = 2,040,944,816.40
  5. Step 5: Solve for x
    x = 2,040,944,816.40/71,592.98
  6. Step 6: Final answer
    x = 28,507.61

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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.