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Finding the Fourth Proportional to 68,501.99, 94,524.21 and 39,815.84

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Solution

The fourth proportional to 68,501.99, 94,524.21 and 39,815.84 is: 54,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,501.99 : 94,524.21 = 39,815.84 : x
  2. Step 2: Convert to fraction form
    68,501.99/94,524.21 = 39,815.84/x
  3. Step 3: Cross multiply
    68,501.99x = 94,524.21 × 39,815.84
  4. Step 4: Simplify right side
    68,501.99x = 3,763,560,348.87
  5. Step 5: Solve for x
    x = 3,763,560,348.87/68,501.99
  6. Step 6: Final answer
    x = 54,940.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.