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Finding the Fourth Proportional to 19,793.99, 27,314.64 and 10,839.80

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Solution

The fourth proportional to 19,793.99, 27,314.64 and 10,839.80 is: 14,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.99 : 27,314.64 = 10,839.80 : x
  2. Step 2: Convert to fraction form
    19,793.99/27,314.64 = 10,839.80/x
  3. Step 3: Cross multiply
    19,793.99x = 27,314.64 × 10,839.80
  4. Step 4: Simplify right side
    19,793.99x = 296,085,098.10
  5. Step 5: Solve for x
    x = 296,085,098.10/19,793.99
  6. Step 6: Final answer
    x = 14,958.34

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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.