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Finding the Fourth Proportional to 19,804.71, 27,327.90 and 11,844.03

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Solution

The fourth proportional to 19,804.71, 27,327.90 and 11,844.03 is: 16,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.71 : 27,327.90 = 11,844.03 : x
  2. Step 2: Convert to fraction form
    19,804.71/27,327.90 = 11,844.03/x
  3. Step 3: Cross multiply
    19,804.71x = 27,327.90 × 11,844.03
  4. Step 4: Simplify right side
    19,804.71x = 323,672,467.44
  5. Step 5: Solve for x
    x = 323,672,467.44/19,804.71
  6. Step 6: Final answer
    x = 16,343.21

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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.