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Finding the Fourth Proportional to 19,073.31, 26,321.12 and 11,621.31

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Solution

The fourth proportional to 19,073.31, 26,321.12 and 11,621.31 is: 16,037.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.31 : 26,321.12 = 11,621.31 : x
  2. Step 2: Convert to fraction form
    19,073.31/26,321.12 = 11,621.31/x
  3. Step 3: Cross multiply
    19,073.31x = 26,321.12 × 11,621.31
  4. Step 4: Simplify right side
    19,073.31x = 305,885,836.96
  5. Step 5: Solve for x
    x = 305,885,836.96/19,073.31
  6. Step 6: Final answer
    x = 16,037.38

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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.