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Finding the Fourth Proportional to 71,306.88, 106,974.60 and 26,328.51

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Solution

The fourth proportional to 71,306.88, 106,974.60 and 26,328.51 is: 39,498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,306.88 : 106,974.60 = 26,328.51 : x
  2. Step 2: Convert to fraction form
    71,306.88/106,974.60 = 26,328.51/x
  3. Step 3: Cross multiply
    71,306.88x = 106,974.60 × 26,328.51
  4. Step 4: Simplify right side
    71,306.88x = 2,816,481,825.85
  5. Step 5: Solve for x
    x = 2,816,481,825.85/71,306.88
  6. Step 6: Final answer
    x = 39,498.04

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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.