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Finding the Fourth Proportional to 19,701.82, 27,184.79 and 11,744.79

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Solution

The fourth proportional to 19,701.82, 27,184.79 and 11,744.79 is: 16,205.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.82 : 27,184.79 = 11,744.79 : x
  2. Step 2: Convert to fraction form
    19,701.82/27,184.79 = 11,744.79/x
  3. Step 3: Cross multiply
    19,701.82x = 27,184.79 × 11,744.79
  4. Step 4: Simplify right side
    19,701.82x = 319,279,649.74
  5. Step 5: Solve for x
    x = 319,279,649.74/19,701.82
  6. Step 6: Final answer
    x = 16,205.59

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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.