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Finding the Fourth Proportional to 19,994.21, 27,593.16 and 12,039.00

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Solution

The fourth proportional to 19,994.21, 27,593.16 and 12,039.00 is: 16,614.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,994.21 : 27,593.16 = 12,039.00 : x
  2. Step 2: Convert to fraction form
    19,994.21/27,593.16 = 12,039.00/x
  3. Step 3: Cross multiply
    19,994.21x = 27,593.16 × 12,039.00
  4. Step 4: Simplify right side
    19,994.21x = 332,193,904.62
  5. Step 5: Solve for x
    x = 332,193,904.62/19,994.21
  6. Step 6: Final answer
    x = 16,614.51

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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.