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Finding the Fourth Proportional to 21,606.21, 29,822.22 and 14,073.21

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Solution

The fourth proportional to 21,606.21, 29,822.22 and 14,073.21 is: 19,424.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.21 : 29,822.22 = 14,073.21 : x
  2. Step 2: Convert to fraction form
    21,606.21/29,822.22 = 14,073.21/x
  3. Step 3: Cross multiply
    21,606.21x = 29,822.22 × 14,073.21
  4. Step 4: Simplify right side
    21,606.21x = 419,694,364.73
  5. Step 5: Solve for x
    x = 419,694,364.73/21,606.21
  6. Step 6: Final answer
    x = 19,424.71

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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.